move browser to webbrowser/

22 files changed, 0 insertions, 7332 deletions

diff --git a/components/downloads/BrowserDownloads.manifest b/components/downloads/BrowserDownloads.manifest
deleted file mode 100644
index 1881ca1..0000000
--- a/components/downloads/BrowserDownloads.manifest
+++ /dev/null
@@ -1,4 +0,0 @@
-component {49507fe5-2cee-4824-b6a3-e999150ce9b8} DownloadsStartup.js
-contract @mozilla.org/browser/downloadsstartup;1 {49507fe5-2cee-4824-b6a3-e999150ce9b8}
-category profile-after-change DownloadsStartup @mozilla.org/browser/downloadsstartup;1
-component {4d99321e-d156-455b-81f7-e7aa2308134f} DownloadsUI.js
diff --git a/components/downloads/DownloadsCommon.jsm b/components/downloads/DownloadsCommon.jsm
deleted file mode 100644
index efe31ce..0000000
--- a/components/downloads/DownloadsCommon.jsm
+++ /dev/null
@@ -1,1920 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [
-  "DownloadsCommon",
-];
-
-/**
- * Handles the Downloads panel shared methods and data access.
- *
- * This file includes the following constructors and global objects:
- *
- * DownloadsCommon
- * This object is exposed directly to the consumers of this JavaScript module,
- * and provides shared methods for all the instances of the user interface.
- *
- * DownloadsData
- * Retrieves the list of past and completed downloads from the underlying
- * Downloads API data, and provides asynchronous notifications allowing
- * to build a consistent view of the available data.
- *
- * DownloadsIndicatorData
- * This object registers itself with DownloadsData as a view, and transforms the
- * notifications it receives into overall status data, that is then broadcast to
- * the registered download status indicators.
- */
-
-////////////////////////////////////////////////////////////////////////////////
-//// Globals
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
-                                  "resource://gre/modules/PluralForm.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
-                                  "resource://gre/modules/Downloads.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadUIHelper",
-                                  "resource://gre/modules/DownloadUIHelper.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
-                                  "resource://gre/modules/DownloadUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
-                                  "resource://gre/modules/FileUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
-                                  "resource://gre/modules/osfile.jsm")
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
-                                  "resource:///modules/RecentWindow.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Promise",
-                                  "resource://gre/modules/Promise.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsLogger",
-                                  "resource:///modules/DownloadsLogger.jsm");
-
-const nsIDM = Ci.nsIDownloadManager;
-
-const kDownloadsStringBundleUrl =
-  "chrome://browser/locale/downloads/downloads.properties";
-
-const kPrefConfirmOpenExe = "browser.download.confirmOpenExecutable";
-
-const kDownloadsStringsRequiringFormatting = {
-  sizeWithUnits: true,
-  shortTimeLeftSeconds: true,
-  shortTimeLeftMinutes: true,
-  shortTimeLeftHours: true,
-  shortTimeLeftDays: true,
-  statusSeparator: true,
-  statusSeparatorBeforeNumber: true,
-  fileExecutableSecurityWarning: true
-};
-
-const kDownloadsStringsRequiringPluralForm = {
-  otherDownloads2: true
-};
-
-const kPartialDownloadSuffix = ".part";
-
-const kPrefBranch = Services.prefs.getBranch("browser.download.");
-
-var PrefObserver = {
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
-                                         Ci.nsISupportsWeakReference]),
-  getPref: function PO_getPref(name) {
-    try {
-      switch (typeof this.prefs[name]) {
-        case "boolean":
-          return kPrefBranch.getBoolPref(name);
-      }
-    } catch (ex) { }
-    return this.prefs[name];
-  },
-  observe: function PO_observe(aSubject, aTopic, aData) {
-    if (this.prefs.hasOwnProperty(aData)) {
-      return this[aData] = this.getPref(aData);
-    }
-  },
-  register: function PO_register(prefs) {
-    this.prefs = prefs;
-    kPrefBranch.addObserver("", this, true);
-    for (let key in prefs) {
-      let name = key;
-      XPCOMUtils.defineLazyGetter(this, name, function () {
-        return PrefObserver.getPref(name);
-      });
-    }
-  },
-};
-
-PrefObserver.register({
-  // prefName: defaultValue
-  debug: false,
-  animateNotifications: true
-});
-
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsCommon
-
-/**
- * This object is exposed directly to the consumers of this JavaScript module,
- * and provides shared methods for all the instances of the user interface.
- */
-this.DownloadsCommon = {
-  log: function DC_log(...aMessageArgs) {
-    delete this.log;
-    this.log = function DC_log(...aMessageArgs) {
-      if (!PrefObserver.debug) {
-        return;
-      }
-      DownloadsLogger.log.apply(DownloadsLogger, aMessageArgs);
-    }
-    this.log.apply(this, aMessageArgs);
-  },
-
-  error: function DC_error(...aMessageArgs) {
-    delete this.error;
-    this.error = function DC_error(...aMessageArgs) {
-      if (!PrefObserver.debug) {
-        return;
-      }
-      DownloadsLogger.reportError.apply(DownloadsLogger, aMessageArgs);
-    }
-    this.error.apply(this, aMessageArgs);
-  },
-  /**
-   * Returns an object whose keys are the string names from the downloads string
-   * bundle, and whose values are either the translated strings or functions
-   * returning formatted strings.
-   */
-  get strings()
-  {
-    let strings = {};
-    let sb = Services.strings.createBundle(kDownloadsStringBundleUrl);
-    let enumerator = sb.getSimpleEnumeration();
-    while (enumerator.hasMoreElements()) {
-      let string = enumerator.getNext().QueryInterface(Ci.nsIPropertyElement);
-      let stringName = string.key;
-      if (stringName in kDownloadsStringsRequiringFormatting) {
-        strings[stringName] = function () {
-          // Convert "arguments" to a real array before calling into XPCOM.
-          return sb.formatStringFromName(stringName,
-                                         Array.slice(arguments, 0),
-                                         arguments.length);
-        };
-      } else if (stringName in kDownloadsStringsRequiringPluralForm) {
-        strings[stringName] = function (aCount) {
-          // Convert "arguments" to a real array before calling into XPCOM.
-          let formattedString = sb.formatStringFromName(stringName,
-                                         Array.slice(arguments, 0),
-                                         arguments.length);
-          return PluralForm.get(aCount, formattedString);
-        };
-      } else {
-        strings[stringName] = string.value;
-      }
-    }
-    delete this.strings;
-    return this.strings = strings;
-  },
-
-  /**
-   * Generates a very short string representing the given time left.
-   *
-   * @param aSeconds
-   *        Value to be formatted.  It represents the number of seconds, it must
-   *        be positive but does not need to be an integer.
-   *
-   * @return Formatted string, for example "30s" or "2h".  The returned value is
-   *         maximum three characters long, at least in English.
-   */
-  formatTimeLeft: function DC_formatTimeLeft(aSeconds)
-  {
-    // Decide what text to show for the time
-    let seconds = Math.round(aSeconds);
-    if (!seconds) {
-      return "";
-    } else if (seconds <= 30) {
-      return DownloadsCommon.strings["shortTimeLeftSeconds"](seconds);
-    }
-    let minutes = Math.round(aSeconds / 60);
-    if (minutes < 60) {
-      return DownloadsCommon.strings["shortTimeLeftMinutes"](minutes);
-    }
-    let hours = Math.round(minutes / 60);
-    if (hours < 48) { // two days
-      return DownloadsCommon.strings["shortTimeLeftHours"](hours);
-    }
-    let days = Math.round(hours / 24);
-    return DownloadsCommon.strings["shortTimeLeftDays"](Math.min(days, 99));
-  },
-
-  /**
-   * Indicates whether we should show the full Download Manager window interface
-   * instead of the simplified panel interface.  The behavior of downloads
-   * across browsing session is consistent with the selected interface.
-   */
-  get useToolkitUI()
-  {
-    /* Toolkit UI is currently incompatible.
-     * FIXME: Either fix the toolkitUI (make DBConnection work) or remove
-     * the unused code altogether
-     */
-    //try {
-    //  return Services.prefs.getBoolPref("browser.download.useToolkitUI");
-    //} catch (ex) { }
-    return false;
-  },
-
-  /**
-   * Indicates whether we should show visual notification on the indicator
-   * when a download event is triggered.
-   */
-  get animateNotifications()
-  {
-    return PrefObserver.animateNotifications;
-  },
-
-  /**
-   * Get access to one of the DownloadsData or PrivateDownloadsData objects,
-   * depending on the privacy status of the window in question.
-   *
-   * @param aWindow
-   *        The browser window which owns the download button.
-   */
-  getData: function DC_getData(aWindow) {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
-      return PrivateDownloadsData;
-    } else {
-      return DownloadsData;
-    }
-  },
-
-  /**
-   * Initializes the data link for both the private and non-private downloads
-   * data objects.
-   *
-   * @param aDownloadManagerService
-   *        Reference to the service implementing nsIDownloadManager.  We need
-   *        this because getService isn't available for us when this method is
-   *        called, and we must ensure to register our listeners before the
-   *        getService call for the Download Manager returns.
-   */
-  initializeAllDataLinks: function DC_initializeAllDataLinks(aDownloadManagerService) {
-    DownloadsData.initializeDataLink(aDownloadManagerService);
-    PrivateDownloadsData.initializeDataLink(aDownloadManagerService);
-  },
-
-  /**
-   * Terminates the data link for both the private and non-private downloads
-   * data objects.
-   */
-  terminateAllDataLinks: function DC_terminateAllDataLinks() {
-    DownloadsData.terminateDataLink();
-    PrivateDownloadsData.terminateDataLink();
-  },
-
-  /**
-   * Reloads the specified kind of downloads from the non-private store.
-   * This method must only be called when Private Browsing Mode is disabled.
-   *
-   * @param aActiveOnly
-   *        True to load only active downloads from the database.
-   */
-  ensureAllPersistentDataLoaded:
-  function DC_ensureAllPersistentDataLoaded(aActiveOnly) {
-    DownloadsData.ensurePersistentDataLoaded(aActiveOnly);
-  },
-
-  /**
-   * Get access to one of the DownloadsIndicatorData or
-   * PrivateDownloadsIndicatorData objects, depending on the privacy status of
-   * the window in question.
-   */
-  getIndicatorData: function DC_getIndicatorData(aWindow) {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
-      return PrivateDownloadsIndicatorData;
-    } else {
-      return DownloadsIndicatorData;
-    }
-  },
-
-  /**
-   * Returns a reference to the DownloadsSummaryData singleton - creating one
-   * in the process if one hasn't been instantiated yet.
-   *
-   * @param aWindow
-   *        The browser window which owns the download button.
-   * @param aNumToExclude
-   *        The number of items on the top of the downloads list to exclude
-   *        from the summary.
-   */
-  getSummary: function DC_getSummary(aWindow, aNumToExclude)
-  {
-    if (PrivateBrowsingUtils.isWindowPrivate(aWindow)) {
-      if (this._privateSummary) {
-        return this._privateSummary;
-      }
-      return this._privateSummary = new DownloadsSummaryData(true, aNumToExclude);
-    } else {
-      if (this._summary) {
-        return this._summary;
-      }
-      return this._summary = new DownloadsSummaryData(false, aNumToExclude);
-    }
-  },
-  _summary: null,
-  _privateSummary: null,
-
-  /**
-   * Returns the legacy state integer value for the provided Download object.
-   */
-  stateOfDownload(download) {
-    // Collapse state using the correct priority.
-    if (!download.stopped) {
-      return nsIDM.DOWNLOAD_DOWNLOADING;
-    }
-    if (download.succeeded) {
-      return nsIDM.DOWNLOAD_FINISHED;
-    }
-    if (download.error) {
-      if (download.error.becauseBlockedByParentalControls) {
-        return nsIDM.DOWNLOAD_BLOCKED_PARENTAL;
-      }
-      if (download.error.becauseBlockedByReputationCheck) {
-        return nsIDM.DOWNLOAD_DIRTY;
-      }
-      return nsIDM.DOWNLOAD_FAILED;
-    }
-    if (download.canceled) {
-      if (download.hasPartialData) {
-        return nsIDM.DOWNLOAD_PAUSED;
-      }
-      return nsIDM.DOWNLOAD_CANCELED;
-    }
-    return nsIDM.DOWNLOAD_NOTSTARTED;
-  },
-
-  /**
-   * Helper function required because the Downloads Panel and the Downloads View
-   * don't share the controller yet.
-   */
-  removeAndFinalizeDownload(download) {
-    Downloads.getList(Downloads.ALL)
-             .then(list => list.remove(download))
-             .then(() => download.finalize(true))
-             .catch(Cu.reportError);
-  },
-
-  /**
-   * Given an iterable collection of Download objects, generates and returns
-   * statistics about that collection.
-   *
-   * @param downloads An iterable collection of Download objects.
-   *
-   * @return Object whose properties are the generated statistics. Currently,
-   *         we return the following properties:
-   *
-   *         numActive       : The total number of downloads.
-   *         numPaused       : The total number of paused downloads.
-   *         numDownloading  : The total number of downloads being downloaded.
-   *         totalSize       : The total size of all downloads once completed.
-   *         totalTransferred: The total amount of transferred data for these
-   *                           downloads.
-   *         slowestSpeed    : The slowest download rate.
-   *         rawTimeLeft     : The estimated time left for the downloads to
-   *                           complete.
-   *         percentComplete : The percentage of bytes successfully downloaded.
-   */
-  summarizeDownloads(downloads) {
-    let summary = {
-      numActive: 0,
-      numPaused: 0,
-      numDownloading: 0,
-      totalSize: 0,
-      totalTransferred: 0,
-      // slowestSpeed is Infinity so that we can use Math.min to
-      // find the slowest speed. We'll set this to 0 afterwards if
-      // it's still at Infinity by the time we're done iterating all
-      // download.
-      slowestSpeed: Infinity,
-      rawTimeLeft: -1,
-      percentComplete: -1
-    }
-
-    for (let download of downloads) {
-      summary.numActive++;
-
-      if (!download.stopped) {
-        summary.numDownloading++;
-        if (download.hasProgress && download.speed > 0) {
-          let sizeLeft = download.totalBytes - download.currentBytes;
-          summary.rawTimeLeft = Math.max(summary.rawTimeLeft,
-                                         sizeLeft / download.speed);
-          summary.slowestSpeed = Math.min(summary.slowestSpeed,
-                                          download.speed);
-        }
-      } else if (download.canceled && download.hasPartialData) {
-        summary.numPaused++;
-      }
-      // Only add to total values if we actually know the download size.
-      if (download.succeeded) {
-        summary.totalSize += download.target.size;
-        summary.totalTransferred += download.target.size;
-      } else if (download.hasProgress) {
-        summary.totalSize += download.totalBytes;
-        summary.totalTransferred += download.currentBytes;
-      }
-    }
-
-    if (summary.totalSize != 0) {
-      summary.percentComplete = (summary.totalTransferred /
-                                 summary.totalSize) * 100;
-    }
-
-    if (summary.slowestSpeed == Infinity) {
-      summary.slowestSpeed = 0;
-    }
-
-    return summary;
-  },
-
-  /**
-   * If necessary, smooths the estimated number of seconds remaining for one
-   * or more downloads to complete.
-   *
-   * @param aSeconds
-   *        Current raw estimate on number of seconds left for one or more
-   *        downloads. This is a floating point value to help get sub-second
-   *        accuracy for current and future estimates.
-   */
-  smoothSeconds: function DC_smoothSeconds(aSeconds, aLastSeconds)
-  {
-    // We apply an algorithm similar to the DownloadUtils.getTimeLeft function,
-    // though tailored to a single time estimation for all downloads.  We never
-    // apply something if the new value is less than half the previous value.
-    let shouldApplySmoothing = aLastSeconds >= 0 &&
-                               aSeconds > aLastSeconds / 2;
-    if (shouldApplySmoothing) {
-      // Apply hysteresis to favor downward over upward swings.  Trust only 30%
-      // of the new value if lower, and 10% if higher (exponential smoothing).
-      let diff = aSeconds - aLastSeconds;
-      aSeconds = aLastSeconds + (diff < 0 ? .3 : .1) * diff;
-      
-      // If the new time is similar, reuse something close to the last time
-      // left, but subtract a little to provide forward progress.
-      diff = aSeconds - aLastSeconds;
-      let diffPercent = diff / aLastSeconds * 100;
-      if (Math.abs(diff) < 5 || Math.abs(diffPercent) < 5) {
-        aSeconds = aLastSeconds - (diff < 0 ? .4 : .2);
-      }
-    }
-
-    // In the last few seconds of downloading, we are always subtracting and
-    // never adding to the time left.  Ensure that we never fall below one
-    // second left until all downloads are actually finished.
-    return aLastSeconds = Math.max(aSeconds, 1);
-  },
-
-  /**
-   * Opens a downloaded file.
-   *
-   * @param aFile
-   *        the downloaded file to be opened.
-   * @param aMimeInfo
-   *        the mime type info object.  May be null.
-   * @param aOwnerWindow
-   *        the window with which this action is associated.
-   */
-  openDownloadedFile: function DC_openDownloadedFile(aFile, aMimeInfo, aOwnerWindow) {
-    if (!(aFile instanceof Ci.nsIFile))
-      throw new Error("aFile must be a nsIFile object");
-    if (aMimeInfo && !(aMimeInfo instanceof Ci.nsIMIMEInfo))
-      throw new Error("Invalid value passed for aMimeInfo");
-    if (!(aOwnerWindow instanceof Ci.nsIDOMWindow))
-      throw new Error("aOwnerWindow must be a dom-window object");
-
-#ifdef XP_WIN
-    // On Windows, the system will provide a native confirmation prompt
-    // for .exe files. Exclude this from our prompt, but prompt on other
-    // executable types.
-    let isWindowsExe = aFile.leafName.toLowerCase().endsWith(".exe");
-#else
-    let isWindowsExe = false;
-#endif
-
-    // Confirm opening executable files if required.
-    if (aFile.isExecutable() && !isWindowsExe) {
-      let showAlert = true;
-      try {
-        showAlert = Services.prefs.getBoolPref(kPrefConfirmOpenExe);
-      } catch (ex) {
-        // If the preference does not exist, continue with the prompt.
-      }
-
-      if (showAlert) {
-        let name = aFile.leafName;
-        let message =
-          DownloadsCommon.strings.fileExecutableSecurityWarning(name, name);
-        let title =
-          DownloadsCommon.strings.fileExecutableSecurityWarningTitle;
-
-        let open = Services.prompt.confirm(aOwnerWindow, title, message);
-        if (!open) {
-          return;
-        }
-      }
-    }
-
-    // Actually open the file.
-    try {
-      if (aMimeInfo && aMimeInfo.preferredAction == aMimeInfo.useHelperApp) {
-        aMimeInfo.launchWithFile(aFile);
-        return;
-      }
-    }
-    catch(ex) { }
-
-    // If either we don't have the mime info, or the preferred action failed,
-    // attempt to launch the file directly.
-    try {
-      aFile.launch();
-    }
-    catch(ex) {
-      // If launch fails, try sending it through the system's external "file:"
-      // URL handler.
-      Cc["@mozilla.org/uriloader/external-protocol-service;1"]
-        .getService(Ci.nsIExternalProtocolService)
-        .loadUrl(NetUtil.newURI(aFile));
-    }
-  },
-
-  /**
-   * Show a downloaded file in the system file manager.
-   *
-   * @param aFile
-   *        a downloaded file.
-   */
-  showDownloadedFile: function DC_showDownloadedFile(aFile) {
-    if (!(aFile instanceof Ci.nsIFile))
-      throw new Error("aFile must be a nsIFile object");
-    try {
-      // Show the directory containing the file and select the file.
-      aFile.reveal();
-    } catch (ex) {
-      // If reveal fails for some reason (e.g., it's not implemented on unix
-      // or the file doesn't exist), try using the parent if we have it.
-      let parent = aFile.parent;
-      if (parent) {
-        try {
-          // Open the parent directory to show where the file should be.
-          parent.launch();
-        } catch (ex) {
-          // If launch also fails (probably because it's not implemented), let
-          // the OS handler try to open the parent.
-          Cc["@mozilla.org/uriloader/external-protocol-service;1"]
-            .getService(Ci.nsIExternalProtocolService)
-            .loadUrl(NetUtil.newURI(parent));
-        }
-      }
-    }
-  }
-};
-
-/**
- * Returns true if we are executing on Windows Vista or a later version.
- */
-XPCOMUtils.defineLazyGetter(DownloadsCommon, "isWinVistaOrHigher", function () {
-  let os = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime).OS;
-  if (os != "WINNT") {
-    return false;
-  }
-  let sysInfo = Cc["@mozilla.org/system-info;1"].getService(Ci.nsIPropertyBag2);
-  return parseFloat(sysInfo.getProperty("version")) >= 6;
-});
-
-/**
- * Returns true to indicate that we should hook the panel to the JavaScript API
- * for downloads instead of the nsIDownloadManager back-end.
- * This is kept for compatibility/leftovers and should be removed later.
- */
-XPCOMUtils.defineLazyGetter(DownloadsCommon, "useJSTransfer", function () {
-  return true;
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsData
-
-/**
- * Retrieves the list of past and completed downloads from the underlying
- * Download Manager data, and provides asynchronous notifications allowing to
- * build a consistent view of the available data.
- *
- * This object responds to real-time changes in the underlying Download Manager
- * data.  For example, the deletion of one or more downloads is notified through
- * the nsIObserver interface, while any state or progress change is notified
- * through the nsIDownloadProgressListener interface.
- *
- * Note that using this object does not automatically start the Download Manager
- * service.  Consumers will see an empty list of downloads until the service is
- * actually started.  This is useful to display a neutral progress indicator in
- * the main browser window until the autostart timeout elapses.
- *
- * Note that DownloadsData and PrivateDownloadsData are two equivalent singleton
- * objects, one accessing non-private downloads, and the other accessing private
- * ones.
- */
-function DownloadsDataCtor(aPrivate) {
-  this._isPrivate = aPrivate;
-
-  // Contains all the available Download objects and their integer state.
-  this.oldDownloadStates = new Map();
-
-  // Array of view objects that should be notified when the available download
-  // data changes.
-  this._views = [];
-}
-
-DownloadsDataCtor.prototype = {
-  /**
-   * Starts receiving events for current downloads.
-   */
-  initializeDataLink() {
-    if (!this._dataLinkInitialized) {
-      let promiseList = Downloads.getList(this._isPrivate ? Downloads.PRIVATE
-                                                          : Downloads.PUBLIC);
-      promiseList.then(list => list.addView(this)).then(null, Cu.reportError);
-      this._dataLinkInitialized = true;
-    }
-  },
-  _dataLinkInitialized: false,
-
-  /**
-   * Stops receiving events for current downloads and cancels any pending read.
-   */
-  terminateDataLink: function DD_terminateDataLink()
-  {
-    Cu.reportError("terminateDataLink not applicable with JS Transfers");
-    return;
-  },
-
-  /**
-   * Iterator for all the available Download objects. This is empty until the
-   * data has been loaded using the JavaScript API for downloads.
-   */
-  get downloads() this.oldDownloadStates.keys(),
-
-  /**
-   * True if there are finished downloads that can be removed from the list.
-   */
-  get canRemoveFinished()
-  {
-    for (let download of this.downloads) {
-      // Stopped, paused, and failed downloads with partial data are removed.
-      if (download.stopped && !(download.canceled && download.hasPartialData)) {
-        return true;
-      }
-    }
-    return false;
-  },
-
-  /**
-   * Asks the back-end to remove finished downloads from the list.
-   */
-  removeFinished: function DD_removeFinished()
-  {
-    let promiseList = Downloads.getList(this._isPrivate ? Downloads.PRIVATE
-                                                        : Downloads.PUBLIC);
-    promiseList.then(list => list.removeFinished())
-               .then(null, Cu.reportError);
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Integration with the asynchronous Downloads back-end
-
-  onDownloadAdded(download) {
-    // Download objects do not store the end time of downloads, as the Downloads
-    // API does not need to persist this information for all platforms. Once a
-    // download terminates on a Desktop browser, it becomes a history download,
-    // for which the end time is stored differently, as a Places annotation.
-    download.endTime = Date.now();
-
-    this.oldDownloadStates.set(download,
-                               DownloadsCommon.stateOfDownload(download));
-
-    for (let view of this._views) {
-      view.onDownloadAdded(download, true);
-    }
-  },
-
-  onDownloadChanged(download) {
-    let oldState = this.oldDownloadStates.get(download);
-    let newState = DownloadsCommon.stateOfDownload(download);
-    this.oldDownloadStates.set(download, newState);
-
-    if (oldState != newState) {
-      if (download.succeeded ||
-          (download.canceled && !download.hasPartialData) ||
-          download.error) {
-        // Store the end time that may be displayed by the views.
-        download.endTime = Date.now();
-
-        // This state transition code should actually be located in a Downloads
-        // API module (bug 941009).  Moreover, the fact that state is stored as
-        // annotations should be ideally hidden behind methods of
-        // nsIDownloadHistory (bug 830415).
-        if (!this._isPrivate) {
-          try {
-            let downloadMetaData = {
-              state: DownloadsCommon.stateOfDownload(download),
-              endTime: download.endTime,
-            };
-            if (download.succeeded) {
-              downloadMetaData.fileSize = download.target.size;
-            }
-  
-            PlacesUtils.annotations.setPageAnnotation(
-                          NetUtil.newURI(download.source.url),
-                          "downloads/metaData",
-                          JSON.stringify(downloadMetaData), 0,
-                          PlacesUtils.annotations.EXPIRE_WITH_HISTORY);
-          } catch (ex) {
-            Cu.reportError(ex);
-          }
-        }
-      }
-
-      for (let view of this._views) {
-        try {
-          view.onDownloadStateChanged(download);
-        } catch (ex) {
-          Cu.reportError(ex);
-        }
-      }
-
-      if (download.succeeded ||
-          (download.error && download.error.becauseBlocked)) {
-        this._notifyDownloadEvent("finish");
-      }
-    }
-
-    if (!download.newDownloadNotified) {
-      download.newDownloadNotified = true;
-      this._notifyDownloadEvent("start");
-    }
-
-    for (let view of this._views) {
-      view.onDownloadChanged(download);
-    }
-  },
-
-  onDownloadRemoved(download) {
-    this.oldDownloadStates.delete(download);
-
-    for (let view of this._views) {
-      view.onDownloadRemoved(download);
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Registration of views
-
-  /**
-   * Adds an object to be notified when the available download data changes.
-   * The specified object is initialized with the currently available downloads.
-   *
-   * @param aView
-   *        DownloadsView object to be added.  This reference must be passed to
-   *        removeView before termination.
-   */
-  addView: function DD_addView(aView)
-  {
-    this._views.push(aView);
-    this._updateView(aView);
-  },
-
-  /**
-   * Removes an object previously added using addView.
-   *
-   * @param aView
-   *        DownloadsView object to be removed.
-   */
-  removeView: function DD_removeView(aView)
-  {
-    let index = this._views.indexOf(aView);
-    if (index != -1) {
-      this._views.splice(index, 1);
-    }
-  },
-
-  /**
-   * Ensures that the currently loaded data is added to the specified view.
-   *
-   * @param aView
-   *        DownloadsView object to be initialized.
-   */
-  _updateView: function DD_updateView(aView)
-  {
-    // Indicate to the view that a batch loading operation is in progress.
-    aView.onDataLoadStarting();
-
-    // Sort backwards by start time, ensuring that the most recent
-    // downloads are added first regardless of their state.
-    // Tycho:
-    //let loadedItemsArray = [dataItem
-    //                        for each (dataItem in this.dataItems)
-    //                        if (dataItem)];
-    let downloadsArray = [...this.downloads];
-    downloadsArray.sort((a, b) => b.startTime - a.startTime);
-    downloadsArray.forEach(download => aView.onDownloadAdded(download, false));
-
-    // Notify the view that all data is available unless loading is in progress.
-    if (!this._pendingStatement) {
-      aView.onDataLoadCompleted();
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// In-memory downloads data store
-
-  /**
-   * Clears the loaded data.
-   */
-  clear: function DD_clear()
-  {
-    this._terminateDataAccess();
-    this.dataItems = {};
-  },
-
-  /**
-   * Returns the data item associated with the provided source object.  The
-   * source can be a download object that we received from the Download Manager
-   * because of a real-time notification, or a row from the downloads database,
-   * during the asynchronous data load.
-   *
-   * In case we receive download status notifications while we are still
-   * populating the list of downloads from the database, we want the real-time
-   * status to take precedence over the state that is read from the database,
-   * which might be older.  This is achieved by creating the download item if
-   * it's not already in the list, but never updating the returned object using
-   * the data from the database, if the object already exists.
-   *
-   * @param aSource
-   *        Object containing the data with which the item should be initialized
-   *        if it doesn't already exist in the list.  This should implement
-   *        either nsIDownload or mozIStorageRow.  If the item exists, this
-   *        argument is only used to retrieve the download identifier.
-   * @param aMayReuseGUID
-   *        If false, indicates that the download should not be added if a
-   *        download with the same identifier was removed in the meantime.  This
-   *        ensures that, while loading the list asynchronously, downloads that
-   *        have been removed in the meantime do no reappear inadvertently.
-   *
-   * @return New or existing data item, or null if the item was deleted from the
-   *         list of available downloads.
-   */
-  _getOrAddDataItem: function DD_getOrAddDataItem(aSource, aMayReuseGUID)
-  {
-    let downloadGuid = (aSource instanceof Ci.nsIDownload)
-                       ? aSource.guid
-                       : aSource.getResultByName("guid");
-    if (downloadGuid in this.dataItems) {
-      let existingItem = this.dataItems[downloadGuid];
-      if (existingItem || !aMayReuseGUID) {
-        // Returns null if the download was removed and we can't reuse the item.
-        return existingItem;
-      }
-    }
-    DownloadsCommon.log("Creating a new DownloadsDataItem with downloadGuid =",
-                        downloadGuid);
-    let dataItem = new DownloadsDataItem(aSource);
-    this.dataItems[downloadGuid] = dataItem;
-
-    // Create the view items before returning.
-    let addToStartOfList = aSource instanceof Ci.nsIDownload;
-    this._views.forEach(
-      function (view) view.onDataItemAdded(dataItem, addToStartOfList)
-    );
-    return dataItem;
-  },
-
-  /**
-   * Removes the data item with the specified identifier.
-   *
-   * This method can be called at most once per download identifier.
-   */
-  _removeDataItem: function DD_removeDataItem(aDownloadId)
-  {
-    if (aDownloadId in this.dataItems) {
-      let dataItem = this.dataItems[aDownloadId];
-      this.dataItems[aDownloadId] = null;
-      this._views.forEach(
-        function (view) view.onDataItemRemoved(dataItem)
-      );
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Persistent data loading
-
-  /**
-   * Represents an executing statement, allowing its cancellation.
-   */
-  _pendingStatement: null,
-
-  /**
-   * Indicates which kind of items from the persistent downloads database have
-   * been fully loaded in memory and are available to the views.  This can
-   * assume the value of one of the kLoad constants.
-   */
-  _loadState: 0,
-
-  /** No downloads have been fully loaded yet. */
-  get kLoadNone() 0,
-  /** All the active downloads in the database are loaded in memory. */
-  get kLoadActive() 1,
-  /** All the downloads in the database are loaded in memory. */
-  get kLoadAll() 2,
-
-  /**
-   * Reloads the specified kind of downloads from the persistent database.  This
-   * method must only be called when Private Browsing Mode is disabled.
-   *
-   * @param aActiveOnly
-   *        True to load only active downloads from the database.
-   */
-  ensurePersistentDataLoaded:
-  function DD_ensurePersistentDataLoaded(aActiveOnly)
-  {
-    if (this == PrivateDownloadsData) {
-      Cu.reportError("ensurePersistentDataLoaded should not be called on PrivateDownloadsData");
-      return;
-    }
-
-    if (this._pendingStatement) {
-      // We are already in the process of reloading all downloads.
-      return;
-    }
-
-    if (aActiveOnly) {
-      if (this._loadState == this.kLoadNone) {
-        DownloadsCommon.log("Loading only active downloads from the persistence database");
-        // Indicate to the views that a batch loading operation is in progress.
-        this._views.forEach(
-          function (view) view.onDataLoadStarting()
-        );
-
-        // Reload the list using the Download Manager service.  The list is
-        // returned in no particular order.
-        let downloads = Services.downloads.activeDownloads;
-        while (downloads.hasMoreElements()) {
-          let download = downloads.getNext().QueryInterface(Ci.nsIDownload);
-          this._getOrAddDataItem(download, true);
-        }
-        this._loadState = this.kLoadActive;
-
-        // Indicate to the views that the batch loading operation is complete.
-        this._views.forEach(
-          function (view) view.onDataLoadCompleted()
-        );
-        DownloadsCommon.log("Active downloads done loading.");
-      }
-    } else {
-      if (this._loadState != this.kLoadAll) {
-        // Load only the relevant columns from the downloads database.  The
-        // columns are read in the _initFromDataRow method of DownloadsDataItem.
-        // Order by descending download identifier so that the most recent
-        // downloads are notified first to the listening views.
-        DownloadsCommon.log("Loading all downloads from the persistence database.");
-        let dbConnection = Services.downloads.DBConnection;
-        let statement = dbConnection.createAsyncStatement(
-          "SELECT guid, target, name, source, referrer, state, "
-        +        "startTime, endTime, currBytes, maxBytes "
-        + "FROM moz_downloads "
-        + "ORDER BY startTime DESC"
-        );
-        try {
-          this._pendingStatement = statement.executeAsync(this);
-        } finally {
-          statement.finalize();
-        }
-      }
-    }
-  },
-
-  /**
-   * Cancels any pending data access and ensures views are notified.
-   */
-  _terminateDataAccess: function DD_terminateDataAccess()
-  {
-    if (this._pendingStatement) {
-      this._pendingStatement.cancel();
-      this._pendingStatement = null;
-    }
-
-    // Close all the views on the current data.  Create a copy of the array
-    // because some views might unregister while processing this event.
-    Array.slice(this._views, 0).forEach(
-      function (view) view.onDataInvalidated()
-    );
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// mozIStorageStatementCallback
-
-  handleResult: function DD_handleResult(aResultSet)
-  {
-    for (let row = aResultSet.getNextRow();
-         row;
-         row = aResultSet.getNextRow()) {
-      // Add the download to the list and initialize it with the data we read,
-      // unless we already received a notification providing more reliable
-      // information for this download.
-      this._getOrAddDataItem(row, false);
-    }
-  },
-
-  handleError: function DD_handleError(aError)
-  {
-    DownloadsCommon.error("Database statement execution error (",
-                          aError.result, "): ", aError.message);
-  },
-
-  handleCompletion: function DD_handleCompletion(aReason)
-  {
-    DownloadsCommon.log("Loading all downloads from database completed with reason:",
-                        aReason);
-    this._pendingStatement = null;
-
-    // To ensure that we don't inadvertently delete more downloads from the
-    // database than needed on shutdown, we should update the load state only if
-    // the operation completed successfully.
-    if (aReason == Ci.mozIStorageStatementCallback.REASON_FINISHED) {
-      this._loadState = this.kLoadAll;
-    }
-
-    // Indicate to the views that the batch loading operation is complete, even
-    // if the lookup failed or was canceled.  The only possible glitch happens
-    // in case the database backend changes while loading data, when the views
-    // would open and immediately close.  This case is rare enough not to need a
-    // special treatment.
-    this._views.forEach(
-      function (view) view.onDataLoadCompleted()
-    );
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsIObserver
-
-  observe: function DD_observe(aSubject, aTopic, aData)
-  {
-    switch (aTopic) {
-      case "download-manager-remove-download-guid":
-        // If a single download was removed, remove the corresponding data item.
-        if (aSubject) {
-            let downloadGuid = aSubject.QueryInterface(Ci.nsISupportsCString).data;
-            DownloadsCommon.log("A single download with id",
-                                downloadGuid, "was removed.");
-          this._removeDataItem(downloadGuid);
-          break;
-        }
-
-        // Multiple downloads have been removed.  Iterate over known downloads
-        // and remove those that don't exist anymore.
-        DownloadsCommon.log("Multiple downloads were removed.");
-        for each (let dataItem in this.dataItems) {
-          if (dataItem) {
-            // Bug 449811 - We have to bind to the dataItem because Javascript
-            // doesn't do fresh let-bindings per loop iteration.
-            let dataItemBinding = dataItem;
-            Services.downloads.getDownloadByGUID(dataItemBinding.downloadGuid,
-                                                 function(aStatus, aResult) {
-              if (aStatus == Components.results.NS_ERROR_NOT_AVAILABLE) {
-                DownloadsCommon.log("Removing download with id",
-                                    dataItemBinding.downloadGuid);
-                this._removeDataItem(dataItemBinding.downloadGuid);
-              }
-            }.bind(this));
-          }
-        }
-        break;
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsIDownloadProgressListener
-
-  onDownloadStateChange: function DD_onDownloadStateChange(aOldState, aDownload)
-  {
-    if (aDownload.isPrivate != this._isPrivate) {
-      // Ignore the downloads with a privacy status other than what we are
-      // tracking.
-      return;
-    }
-
-    // When a new download is added, it may have the same identifier of a
-    // download that we previously deleted during this session, and we also
-    // want to provide a visible indication that the download started.
-    let isNew = aOldState == nsIDM.DOWNLOAD_NOTSTARTED ||
-                aOldState == nsIDM.DOWNLOAD_QUEUED;
-
-    let dataItem = this._getOrAddDataItem(aDownload, isNew);
-    if (!dataItem) {
-      return;
-    }
-
-    let wasInProgress = dataItem.inProgress;
-
-    DownloadsCommon.log("A download changed its state to:", aDownload.state);
-    dataItem.state = aDownload.state;
-    dataItem.referrer = aDownload.referrer && aDownload.referrer.spec;
-    dataItem.resumable = aDownload.resumable;
-    dataItem.startTime = Math.round(aDownload.startTime / 1000);
-    dataItem.currBytes = aDownload.amountTransferred;
-    dataItem.maxBytes = aDownload.size;
-
-    if (wasInProgress && !dataItem.inProgress) {
-      dataItem.endTime = Date.now();
-    }
-
-    // When a download is retried, we create a different download object from
-    // the database with the same ID as before. This means that the nsIDownload
-    // that the dataItem holds might now need updating.
-    //
-    // We only overwrite this in the event that _download exists, because if it
-    // doesn't, that means that no caller ever tried to get the nsIDownload,
-    // which means it was never retrieved and doesn't need to be overwritten.
-    if (dataItem._download) {
-      dataItem._download = aDownload;
-    }
-
-    for (let view of this._views) {
-      try {
-        view.getViewItem(dataItem).onStateChange(aOldState);
-      } catch (ex) {
-        Cu.reportError(ex);
-      }
-    }
-
-    if (isNew && !dataItem.newDownloadNotified) {
-      dataItem.newDownloadNotified = true;
-      this._notifyDownloadEvent("start");
-    }
-
-    // This is a final state of which we are only notified once.
-    if (dataItem.done) {
-      this._notifyDownloadEvent("finish");
-    }
-
-    // TODO Bug 830415: this isn't the right place to set these annotation.
-    // It should be set it in places' nsIDownloadHistory implementation.
-    if (!this._isPrivate && !dataItem.inProgress) {
-      let downloadMetaData = { state: dataItem.state,
-                               endTime: dataItem.endTime };
-      if (dataItem.done)
-        downloadMetaData.fileSize = dataItem.maxBytes;
-
-      try {
-        PlacesUtils.annotations.setPageAnnotation(
-          NetUtil.newURI(dataItem.uri), "downloads/metaData", JSON.stringify(downloadMetaData), 0,
-          PlacesUtils.annotations.EXPIRE_WITH_HISTORY);
-      }
-      catch(ex) {
-        Cu.reportError(ex);
-      }
-    }
-  },
-
-  onProgressChange: function DD_onProgressChange(aWebProgress, aRequest,
-                                                  aCurSelfProgress,
-                                                  aMaxSelfProgress,
-                                                  aCurTotalProgress,
-                                                  aMaxTotalProgress, aDownload)
-  {
-    if (aDownload.isPrivate != this._isPrivate) {
-      // Ignore the downloads with a privacy status other than what we are
-      // tracking.
-      return;
-    }
-
-    let dataItem = this._getOrAddDataItem(aDownload, false);
-    if (!dataItem) {
-      return;
-    }
-
-    dataItem.currBytes = aDownload.amountTransferred;
-    dataItem.maxBytes = aDownload.size;
-    dataItem.speed = aDownload.speed;
-    dataItem.percentComplete = aDownload.percentComplete;
-
-    this._views.forEach(
-      function (view) view.getViewItem(dataItem).onProgressChange()
-    );
-  },
-
-  onStateChange: function () { },
-
-  onSecurityChange: function () { },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Notifications sent to the most recent browser window only
-
-  /**
-   * Set to true after the first download causes the downloads panel to be
-   * displayed.
-   */
-  get panelHasShownBefore() {
-    try {
-      return Services.prefs.getBoolPref("browser.download.panel.shown");
-    } catch (ex) { }
-    return false;
-  },
-
-  set panelHasShownBefore(aValue) {
-    Services.prefs.setBoolPref("browser.download.panel.shown", aValue);
-    return aValue;
-  },
-
-  /**
-   * Displays a new or finished download notification in the most recent browser
-   * window, if one is currently available with the required privacy type.
-   *
-   * @param aType
-   *        Set to "start" for new downloads, "finish" for completed downloads.
-   */
-  _notifyDownloadEvent: function DD_notifyDownloadEvent(aType)
-  {
-    DownloadsCommon.log("Attempting to notify that a new download has started or finished.");
-    if (DownloadsCommon.useToolkitUI) {
-      DownloadsCommon.log("Cancelling notification - we're using the toolkit downloads manager.");
-      return;
-    }
-
-    // Show the panel in the most recent browser window, if present.
-    let browserWin = RecentWindow.getMostRecentBrowserWindow({ private: this._isPrivate });
-    if (!browserWin) {
-      return;
-    }
-
-    if (this.panelHasShownBefore) {
-      // For new downloads after the first one, don't show the panel
-      // automatically, but provide a visible notification in the topmost
-      // browser window, if the status indicator is already visible.
-      DownloadsCommon.log("Showing new download notification.");
-      browserWin.DownloadsIndicatorView.showEventNotification(aType);
-      return;
-    }
-    this.panelHasShownBefore = true;
-    browserWin.DownloadsPanel.showPanel();
-  }
-};
-
-XPCOMUtils.defineLazyGetter(this, "PrivateDownloadsData", function() {
-  return new DownloadsDataCtor(true);
-});
-
-XPCOMUtils.defineLazyGetter(this, "DownloadsData", function() {
-  return new DownloadsDataCtor(false);
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsViewPrototype
-
-/**
- * A prototype for an object that registers itself with DownloadsData as soon
- * as a view is registered with it.
- */
-const DownloadsViewPrototype = {
-  //////////////////////////////////////////////////////////////////////////////
-  //// Registration of views
-
-  /**
-   * Array of view objects that should be notified when the available status
-   * data changes.
-   *
-   * SUBCLASSES MUST OVERRIDE THIS PROPERTY.
-   */
-  _views: null,
-
-  /**
-   * Determines whether this view object is over the private or non-private
-   * downloads.
-   *
-   * SUBCLASSES MUST OVERRIDE THIS PROPERTY.
-   */
-  _isPrivate: false,
-
-  /**
-   * Adds an object to be notified when the available status data changes.
-   * The specified object is initialized with the currently available status.
-   *
-   * @param aView
-   *        View object to be added.  This reference must be
-   *        passed to removeView before termination.
-   */
-  addView: function DVP_addView(aView)
-  {
-    // Start receiving events when the first of our views is registered.
-    if (this._views.length == 0) {
-      if (this._isPrivate) {
-        PrivateDownloadsData.addView(this);
-      } else {
-        DownloadsData.addView(this);
-      }
-    }
-
-    this._views.push(aView);
-    this.refreshView(aView);
-  },
-
-  /**
-   * Updates the properties of an object previously added using addView.
-   *
-   * @param aView
-   *        View object to be updated.
-   */
-  refreshView: function DVP_refreshView(aView)
-  {
-    // Update immediately even if we are still loading data asynchronously.
-    // Subclasses must provide these two functions!
-    this._refreshProperties();
-    this._updateView(aView);
-  },
-
-  /**
-   * Removes an object previously added using addView.
-   *
-   * @param aView
-   *        View object to be removed.
-   */
-  removeView: function DVP_removeView(aView)
-  {
-    let index = this._views.indexOf(aView);
-    if (index != -1) {
-      this._views.splice(index, 1);
-    }
-
-    // Stop receiving events when the last of our views is unregistered.
-    if (this._views.length == 0) {
-      if (this._isPrivate) {
-        PrivateDownloadsData.removeView(this);
-      } else {
-        DownloadsData.removeView(this);
-      }
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsData
-
-  /**
-   * Indicates whether we are still loading downloads data asynchronously.
-   */
-  _loading: false,
-
-  /**
-   * Called before multiple downloads are about to be loaded.
-   */
-  onDataLoadStarting: function DVP_onDataLoadStarting()
-  {
-    this._loading = true;
-  },
-
-  /**
-   * Called after data loading finished.
-   */
-  onDataLoadCompleted: function DVP_onDataLoadCompleted()
-  {
-    this._loading = false;
-  },
-
-  /**
-   * Called when the downloads database becomes unavailable (for example, we
-   * entered Private Browsing Mode and the database backend changed).
-   * References to existing data should be discarded.
-   *
-   * @note Subclasses should override this.
-   */
-  onDataInvalidated: function DVP_onDataInvalidated()
-  {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Called when a new download data item is available, either during the
-   * asynchronous data load or when a new download is started.
-   *
-   * @param download
-   *        Download object that was just added.
-   * @param newest
-   *        When true, indicates that this item is the most recent and should be
-   *        added in the topmost position.  This happens when a new download is
-   *        started.  When false, indicates that the item is the least recent
-   *        with regard to the items that have been already added. The latter
-   *        generally happens during the asynchronous data load.
-   *
-   * @note Subclasses should override this.
-   */
-  onDownloadAdded(download, newest) {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Called when the overall state of a Download has changed. In particular,
-   * this is called only once when the download succeeds or is blocked
-   * permanently, and is never called if only the current progress changed.
-   *
-   * The onDownloadChanged notification will always be sent afterwards.
-   *
-   * @note Subclasses should override this.
-   */
-  onDownloadStateChanged(download) {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Called every time any state property of a Download may have changed,
-   * including progress properties.
-   *
-   * Note that progress notification changes are throttled at the Downloads.jsm
-   * API level, and there is no throttling mechanism in the front-end.
-   *
-   * @note Subclasses should override this.
-   */
-  onDownloadChanged(download) {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Called when a data item is removed, ensures that the widget associated with
-   * the view item is removed from the user interface.
-   *
-   * @param download
-   *        Download object that is being removed.
-   *
-   * @note Subclasses should override this.
-   */
-  onDownloadRemoved(download) {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Private function used to refresh the internal properties being sent to
-   * each registered view.
-   *
-   * @note Subclasses should override this.
-   */
-  _refreshProperties: function DID_refreshProperties()
-  {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  },
-
-  /**
-   * Private function used to refresh an individual view.
-   *
-   * @note Subclasses should override this.
-   */
-  _updateView: function DID_updateView()
-  {
-    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
-  }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsIndicatorData
-
-/**
- * This object registers itself with DownloadsData as a view, and transforms the
- * notifications it receives into overall status data, that is then broadcast to
- * the registered download status indicators.
- *
- * Note that using this object does not automatically start the Download Manager
- * service.  Consumers will see an empty list of downloads until the service is
- * actually started.  This is useful to display a neutral progress indicator in
- * the main browser window until the autostart timeout elapses.
- */
-function DownloadsIndicatorDataCtor(aPrivate) {
-  this._isPrivate = aPrivate;
-  this._views = [];
-}
-DownloadsIndicatorDataCtor.prototype = {
-  __proto__: DownloadsViewPrototype,
-
-  /**
-   * Removes an object previously added using addView.
-   *
-   * @param aView
-   *        DownloadsIndicatorView object to be removed.
-   */
-  removeView: function DID_removeView(aView)
-  {
-    DownloadsViewPrototype.removeView.call(this, aView);
-
-    if (this._views.length == 0) {
-      this._itemCount = 0;
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsData
-
-  onDataLoadCompleted: function DID_onDataLoadCompleted()
-  {
-    DownloadsViewPrototype.onDataLoadCompleted.call(this);
-    this._updateViews();
-  },
-
-  /**
-   * Called when the downloads database becomes unavailable (for example, we
-   * entered Private Browsing Mode and the database backend changed).
-   * References to existing data should be discarded.
-   */
-  onDataInvalidated: function DID_onDataInvalidated()
-  {
-    this._itemCount = 0;
-  },
-
-  onDownloadAdded(download, newest) {
-    this._itemCount++;
-    this._updateViews();
-  },
-
-  onDownloadStateChanged(download) {
-    if (download.succeeded || download.error) {
-      this.attention = true;
-    }
-
-    // Since the state of a download changed, reset the estimated time left.
-    this._lastRawTimeLeft = -1;
-    this._lastTimeLeft = -1;
-  },
-
-  onDownloadChanged(download) {
-    this._updateViews();
-  },
-
-  onDownloadRemoved(download) {
-    this._itemCount--;
-    this._updateViews();
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Propagation of properties to our views
-
-  // The following properties are updated by _refreshProperties and are then
-  // propagated to the views.  See _refreshProperties for details.
-  _hasDownloads: false,
-  _counter: "",
-  _percentComplete: -1,
-  _paused: false,
-
-  /**
-   * Indicates whether the download indicators should be highlighted.
-   */
-  set attention(aValue)
-  {
-    this._attention = aValue;
-    this._updateViews();
-    return aValue;
-  },
-  _attention: false,
-
-  /**
-   * Indicates whether the user is interacting with downloads, thus the
-   * attention indication should not be shown even if requested.
-   */
-  set attentionSuppressed(aValue)
-  {
-    this._attentionSuppressed = aValue;
-    this._attention = false;
-    this._updateViews();
-    return aValue;
-  },
-  _attentionSuppressed: false,
-
-  /**
-   * Computes aggregate values and propagates the changes to our views.
-   */
-  _updateViews: function DID_updateViews()
-  {
-    // Do not update the status indicators during batch loads of download items.
-    if (this._loading) {
-      return;
-    }
-
-    this._refreshProperties();
-    this._views.forEach(this._updateView, this);
-  },
-
-  /**
-   * Updates the specified view with the current aggregate values.
-   *
-   * @param aView
-   *        DownloadsIndicatorView object to be updated.
-   */
-  _updateView: function DID_updateView(aView)
-  {
-    aView.hasDownloads = this._hasDownloads;
-    aView.counter = this._counter;
-    aView.percentComplete = this._percentComplete;
-    aView.paused = this._paused;
-    aView.attention = this._attention && !this._attentionSuppressed;
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Property updating based on current download status
-
-  /**
-   * Number of download items that are available to be displayed.
-   */
-  _itemCount: 0,
-
-  /**
-   * Floating point value indicating the last number of seconds estimated until
-   * the longest download will finish.  We need to store this value so that we
-   * don't continuously apply smoothing if the actual download state has not
-   * changed.  This is set to -1 if the previous value is unknown.
-   */
-  _lastRawTimeLeft: -1,
-
-  /**
-   * Last number of seconds estimated until all in-progress downloads with a
-   * known size and speed will finish.  This value is stored to allow smoothing
-   * in case of small variations.  This is set to -1 if the previous value is
-   * unknown.
-   */
-  _lastTimeLeft: -1,
-
-  /**
-   * A generator function for the Download objects this summary is currently
-   * interested in. This generator is passed off to summarizeDownloads in order
-   * to generate statistics about the downloads we care about - in this case,
-   * it's all active downloads.
-   */
-  * _activeDownloads() {
-    let downloads = this._isPrivate ? PrivateDownloadsData.downloads
-                                    : DownloadsData.downloads;
-    for (let download of downloads) {
-      if (!download.stopped || (download.canceled && download.hasPartialData)) {
-        yield download;
-      }
-    }
-  },
-
-  /**
-   * Computes aggregate values based on the current state of downloads.
-   */
-  _refreshProperties: function DID_refreshProperties()
-  {
-    let summary =
-      DownloadsCommon.summarizeDownloads(this._activeDownloads());
-
-    // Determine if the indicator should be shown or get attention.
-    this._hasDownloads = (this._itemCount > 0);
-
-    // If all downloads are paused, show the progress indicator as paused.
-    this._paused = summary.numActive > 0 &&
-                   summary.numActive == summary.numPaused;
-
-    this._percentComplete = summary.percentComplete;
-
-    // Display the estimated time left, if present.
-    if (summary.rawTimeLeft == -1) {
-      // There are no downloads with a known time left.
-      this._lastRawTimeLeft = -1;
-      this._lastTimeLeft = -1;
-      this._counter = "";
-    } else {
-      // Compute the new time left only if state actually changed.
-      if (this._lastRawTimeLeft != summary.rawTimeLeft) {
-        this._lastRawTimeLeft = summary.rawTimeLeft;
-        this._lastTimeLeft = DownloadsCommon.smoothSeconds(summary.rawTimeLeft,
-                                                           this._lastTimeLeft);
-      }
-      this._counter = DownloadsCommon.formatTimeLeft(this._lastTimeLeft);
-    }
-  }
-};
-
-XPCOMUtils.defineLazyGetter(this, "PrivateDownloadsIndicatorData", function() {
-  return new DownloadsIndicatorDataCtor(true);
-});
-
-XPCOMUtils.defineLazyGetter(this, "DownloadsIndicatorData", function() {
-  return new DownloadsIndicatorDataCtor(false);
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsSummaryData
-
-/**
- * DownloadsSummaryData is a view for DownloadsData that produces a summary
- * of all downloads after a certain exclusion point aNumToExclude. For example,
- * if there were 5 downloads in progress, and a DownloadsSummaryData was
- * constructed with aNumToExclude equal to 3, then that DownloadsSummaryData
- * would produce a summary of the last 2 downloads.
- *
- * @param aIsPrivate
- *        True if the browser window which owns the download button is a private
- *        window.
- * @param aNumToExclude
- *        The number of items to exclude from the summary, starting from the
- *        top of the list.
- */
-function DownloadsSummaryData(aIsPrivate, aNumToExclude) {
-  this._numToExclude = aNumToExclude;
-  // Since we can have multiple instances of DownloadsSummaryData, we
-  // override these values from the prototype so that each instance can be
-  // completely separated from one another.
-  this._loading = false;
-
-  this._downloads = [];
-
-  // Floating point value indicating the last number of seconds estimated until
-  // the longest download will finish.  We need to store this value so that we
-  // don't continuously apply smoothing if the actual download state has not
-  // changed.  This is set to -1 if the previous value is unknown.
-  this._lastRawTimeLeft = -1;
-
-  // Last number of seconds estimated until all in-progress downloads with a
-  // known size and speed will finish.  This value is stored to allow smoothing
-  // in case of small variations.  This is set to -1 if the previous value is
-  // unknown.
-  this._lastTimeLeft = -1;
-
-  // The following properties are updated by _refreshProperties and are then
-  // propagated to the views.
-  this._showingProgress = false;
-  this._details = "";
-  this._description = "";
-  this._numActive = 0;
-  this._percentComplete = -1;
-
-  this._isPrivate = aIsPrivate;
-  this._views = [];
-}
-
-DownloadsSummaryData.prototype = {
-  __proto__: DownloadsViewPrototype,
-
-  /**
-   * Removes an object previously added using addView.
-   *
-   * @param aView
-   *        DownloadsSummary view to be removed.
-   */
-  removeView: function DSD_removeView(aView)
-  {
-    DownloadsViewPrototype.removeView.call(this, aView);
-
-    if (this._views.length == 0) {
-      // Clear out our collection of Download objects. If we ever have
-      // another view registered with us, this will get re-populated.
-      this._downloads = [];
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsData - see the documentation in
-  //// DownloadsViewPrototype for more information on what these functions
-  //// are used for.
-
-  onDataLoadCompleted: function DSD_onDataLoadCompleted()
-  {
-    DownloadsViewPrototype.onDataLoadCompleted.call(this);
-    this._updateViews();
-  },
-
-  onDataInvalidated: function DSD_onDataInvalidated()
-  {
-    this._dataItems = [];
-  },
-
-  onDownloadAdded(download, newest) {
-    if (newest) {
-      this._downloads.unshift(download);
-    } else {
-      this._downloads.push(download);
-    }
-
-    this._updateViews();
-  },
-
-  onDownloadStateChanged() {
-    // Since the state of a download changed, reset the estimated time left.
-    this._lastRawTimeLeft = -1;
-    this._lastTimeLeft = -1;
-  },
-
-  onDownloadChanged() {
-    this._updateViews();
-  },
-
-  onDownloadRemoved(download) {
-    let itemIndex = this._downloads.indexOf(download);
-    this._downloads.splice(itemIndex, 1);
-    this._updateViews();
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Propagation of properties to our views
-
-  /**
-   * Computes aggregate values and propagates the changes to our views.
-   */
-  _updateViews: function DSD_updateViews()
-  {
-    // Do not update the status indicators during batch loads of download items.
-    if (this._loading) {
-      return;
-    }
-
-    this._refreshProperties();
-    this._views.forEach(this._updateView, this);
-  },
-
-  /**
-   * Updates the specified view with the current aggregate values.
-   *
-   * @param aView
-   *        DownloadsIndicatorView object to be updated.
-   */
-  _updateView: function DSD_updateView(aView)
-  {
-    aView.showingProgress = this._showingProgress;
-    aView.percentComplete = this._percentComplete;
-    aView.description = this._description;
-    aView.details = this._details;
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Property updating based on current download status
-
-  /**
-   * A generator function for the Download objects this summary is currently
-   * interested in. This generator is passed off to summarizeDownloads in order
-   * to generate statistics about the downloads we care about - in this case,
-   * it's the downloads in this._downloads after the first few to exclude,
-   * which was set when constructing this DownloadsSummaryData instance.
-   */
-  * _downloadsForSummary() {
-    if (this._downloads.length > 0) {
-      for (let i = this._numToExclude; i < this._downloads.length; ++i) {
-        yield this._downloads[i];
-      }
-    }
-  },
-
-  /**
-   * Computes aggregate values based on the current state of downloads.
-   */
-  _refreshProperties: function DSD_refreshProperties()
-  {
-    // Pre-load summary with default values.
-    let summary =
-      DownloadsCommon.summarizeDownloads(this._downloadsForSummary());
-
-    this._description = DownloadsCommon.strings
-                                       .otherDownloads2(summary.numActive);
-    this._percentComplete = summary.percentComplete;
-
-    // If all downloads are paused, show the progress indicator as paused.
-    this._showingProgress = summary.numDownloading > 0 ||
-                            summary.numPaused > 0;
-
-    // Display the estimated time left, if present.
-    if (summary.rawTimeLeft == -1) {
-      // There are no downloads with a known time left.
-      this._lastRawTimeLeft = -1;
-      this._lastTimeLeft = -1;
-      this._details = "";
-    } else {
-      // Compute the new time left only if state actually changed.
-      if (this._lastRawTimeLeft != summary.rawTimeLeft) {
-        this._lastRawTimeLeft = summary.rawTimeLeft;
-        this._lastTimeLeft = DownloadsCommon.smoothSeconds(summary.rawTimeLeft,
-                                                           this._lastTimeLeft);
-      }
-      [this._details] = DownloadUtils.getDownloadStatusNoRate(
-        summary.totalTransferred, summary.totalSize, summary.slowestSpeed,
-        this._lastTimeLeft);
-    }
-  }
-}
diff --git a/components/downloads/DownloadsLogger.jsm b/components/downloads/DownloadsLogger.jsm
deleted file mode 100644
index 1218539..0000000
--- a/components/downloads/DownloadsLogger.jsm
+++ /dev/null
@@ -1,76 +0,0 @@
-/* -*- Mode: js2; js2-basic-offset: 2; indent-tabs-mode: nil; -*- */
-/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * The contents of this file were copied almost entirely from
- * toolkit/identity/LogUtils.jsm. Until we've got a more generalized logging
- * mechanism for toolkit, I think this is going to be how we roll.
- */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = ["DownloadsLogger"];
-const PREF_DEBUG = "browser.download.debug";
-
-const Cu = Components.utils;
-const Ci = Components.interfaces;
-const Cc = Components.classes;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-
-this.DownloadsLogger = {
-  _generateLogMessage: function _generateLogMessage(args) {
-    // create a string representation of a list of arbitrary things
-    let strings = [];
-
-    for (let arg of args) {
-      if (typeof arg === 'string') {
-        strings.push(arg);
-      } else if (arg === undefined) {
-        strings.push('undefined');
-      } else if (arg === null) {
-        strings.push('null');
-      } else {
-        try {
-          strings.push(JSON.stringify(arg, null, 2));
-        } catch(err) {
-          strings.push("<<something>>");
-        }
-      }
-    };
-    return 'Downloads: ' + strings.join(' ');
-  },
-
-  /**
-   * log() - utility function to print a list of arbitrary things
-   *
-   * Enable with about:config pref browser.download.debug
-   */
-  log: function DL_log(...args) {
-    let output = this._generateLogMessage(args);
-    dump(output + "\n");
-
-    // Additionally, make the output visible in the Error Console
-    Services.console.logStringMessage(output);
-  },
-
-  /**
-   * reportError() - report an error through component utils as well as
-   * our log function
-   */
-  reportError: function DL_reportError(...aArgs) {
-    // Report the error in the browser
-    let output = this._generateLogMessage(aArgs);
-    Cu.reportError(output);
-    dump("ERROR:" + output + "\n");
-    for (let frame = Components.stack.caller; frame; frame = frame.caller) {
-      dump("\t" + frame + "\n");
-    }
-  }
-
-};
diff --git a/components/downloads/DownloadsStartup.js b/components/downloads/DownloadsStartup.js
deleted file mode 100644
index e1dd207..0000000
--- a/components/downloads/DownloadsStartup.js
+++ /dev/null
@@ -1,278 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * This component listens to notifications for startup, shutdown and session
- * restore, controlling which downloads should be loaded from the database.
- *
- * To avoid affecting startup performance, this component monitors the current
- * session restore state, but defers the actual downloads data manipulation
- * until the Download Manager service is loaded.
- */
-
-"use strict";
-
-////////////////////////////////////////////////////////////////////////////////
-//// Globals
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
-                                  "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyServiceGetter(this, "gSessionStartup",
-                                   "@mozilla.org/browser/sessionstartup;1",
-                                   "nsISessionStartup");
-
-const kObservedTopics = [
-  "sessionstore-windows-restored",
-  "sessionstore-browser-state-restored",
-  "download-manager-initialized",
-  "download-manager-change-retention",
-  "last-pb-context-exited",
-  "browser-lastwindow-close-granted",
-  "quit-application",
-  "profile-change-teardown",
-];
-
-/**
- * CID of our implementation of nsIDownloadManagerUI.
- */
-const kDownloadsUICid = Components.ID("{4d99321e-d156-455b-81f7-e7aa2308134f}");
-
-/**
- * Contract ID of the service implementing nsIDownloadManagerUI.
- */
-const kDownloadsUIContractId = "@mozilla.org/download-manager-ui;1";
-
-/**
- * CID of the JavaScript implementation of nsITransfer.
- */
-const kTransferCid = Components.ID("{1b4c85df-cbdd-4bb6-b04e-613caece083c}");
-
-/**
- * Contract ID of the service implementing nsITransfer.
- */
-const kTransferContractId = "@mozilla.org/transfer;1";
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsStartup
-
-function DownloadsStartup() { }
-
-DownloadsStartup.prototype = {
-  classID: Components.ID("{49507fe5-2cee-4824-b6a3-e999150ce9b8}"),
-
-  _xpcom_factory: XPCOMUtils.generateSingletonFactory(DownloadsStartup),
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsISupports
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
-                                         Ci.nsISupportsWeakReference]),
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsIObserver
-
-  observe: function DS_observe(aSubject, aTopic, aData)
-  {
-    switch (aTopic) {
-      case "profile-after-change":
-        // Override Toolkit's nsIDownloadManagerUI implementation with our own.
-        // This must be done at application startup and not in the manifest to
-        // ensure that our implementation overrides the original one.
-        Components.manager.QueryInterface(Ci.nsIComponentRegistrar)
-                          .registerFactory(kDownloadsUICid, "",
-                                           kDownloadsUIContractId, null);
-
-        Components.manager.QueryInterface(Ci.nsIComponentRegistrar)
-                          .registerFactory(kTransferCid, "",
-                                           kTransferContractId, null);
-        break;
-
-      case "sessionstore-windows-restored":
-      case "sessionstore-browser-state-restored":
-        // Unless there is no saved session, there is a chance that we are
-        // starting up after a restart or a crash.  We should check the disk
-        // database to see if there are completed downloads to recover and show
-        // in the panel, in addition to in-progress downloads.
-        if (gSessionStartup.sessionType != Ci.nsISessionStartup.NO_SESSION) {
-          this._restoringSession = true;
-        }
-        this._ensureDataLoaded();
-        break;
-
-      case "download-manager-initialized":
-        // Don't initialize the JavaScript data and user interface layer if we
-        // are initializing the Download Manager service during shutdown.
-        if (this._shuttingDown) {
-          break;
-        }
-
-        // Start receiving events for active and new downloads before we return
-        // from this observer function.  We can't defer the execution of this
-        // step, to ensure that we don't lose events raised in the meantime.
-        DownloadsCommon.initializeAllDataLinks(
-                        aSubject.QueryInterface(Ci.nsIDownloadManager));
-
-        this._downloadsServiceInitialized = true;
-
-        // Since this notification is generated during the getService call and
-        // we need to get the Download Manager service ourselves, we must post
-        // the handler on the event queue to be executed later.
-        Services.tm.mainThread.dispatch(this._ensureDataLoaded.bind(this),
-                                        Ci.nsIThread.DISPATCH_NORMAL);
-        break;
-
-      case "download-manager-change-retention":
-        // If we're using the Downloads Panel, we override the retention
-        // preference to always retain downloads on completion.
-        if (!DownloadsCommon.useToolkitUI) {
-          aSubject.QueryInterface(Ci.nsISupportsPRInt32).data = 2;
-        }
-        break;
-
-      case "browser-lastwindow-close-granted":
-        // When using the panel interface, downloads that are already completed
-        // should be removed when the last full browser window is closed.  This
-        // event is invoked only if the application is not shutting down yet.
-        // If the Download Manager service is not initialized, we don't want to
-        // initialize it just to clean up completed downloads, because they can
-        // be present only in case there was a browser crash or restart.
-        if (this._downloadsServiceInitialized &&
-            !DownloadsCommon.useToolkitUI) {
-          Services.downloads.cleanUp();
-        }
-        break;
-
-      case "last-pb-context-exited":
-        // Similar to the above notification, but for private downloads.
-        if (this._downloadsServiceInitialized &&
-            !DownloadsCommon.useToolkitUI) {
-          Services.downloads.cleanUpPrivate();
-        }
-        break;
-
-      case "quit-application":
-        // When the application is shutting down, we must free all resources in
-        // addition to cleaning up completed downloads.  If the Download Manager
-        // service is not initialized, we don't want to initialize it just to
-        // clean up completed downloads, because they can be present only in
-        // case there was a browser crash or restart.
-        this._shuttingDown = true;
-        if (!this._downloadsServiceInitialized) {
-          break;
-        }
-
-        DownloadsCommon.terminateAllDataLinks();
-
-        // When using the panel interface, downloads that are already completed
-        // should be removed when quitting the application.
-        if (!DownloadsCommon.useToolkitUI && aData != "restart") {
-          this._cleanupOnShutdown = true;
-        }
-        break;
-
-      case "profile-change-teardown":
-        // If we need to clean up, we must do it synchronously after all the
-        // "quit-application" listeners are invoked, so that the Download
-        // Manager service has a chance to pause or cancel in-progress downloads
-        // before we remove completed downloads from the list.  Note that, since
-        // "quit-application" was invoked, we've already exited Private Browsing
-        // Mode, thus we are always working on the disk database.
-        if (this._cleanupOnShutdown) {
-          Services.downloads.cleanUp();
-        }
-
-        if (!DownloadsCommon.useToolkitUI) {
-          // If we got this far, that means that we finished our first session
-          // with the Downloads Panel without crashing. This means that we don't
-          // have to force displaying only active downloads on the next startup
-          // now.
-          this._firstSessionCompleted = true;
-        }
-        break;
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Private
-
-  /**
-   * Indicates whether we're restoring a previous session. This is used by
-   * _recoverAllDownloads to determine whether or not we should load and
-   * display all downloads data, or restrict it to only the active downloads.
-   */
-  _restoringSession: false,
-
-  /**
-   * Indicates whether the Download Manager service has been initialized.  This
-   * flag is required because we want to avoid accessing the service immediately
-   * at browser startup.  The service will start when the user first requests a
-   * download, or some time after browser startup.
-   */
-  _downloadsServiceInitialized: false,
-
-  /**
-   * True while we are processing the "quit-application" event, and later.
-   */
-  _shuttingDown: false,
-
-  /**
-   * True during shutdown if we need to remove completed downloads.
-   */
-  _cleanupOnShutdown: false,
-
-  /**
-   * True if we should display all downloads, as opposed to just active
-   * downloads. We decide to display all downloads if we're restoring a session,
-   * or if we're using the Downloads Panel anytime after the first session with
-   * it has completed.
-   */
-  get _recoverAllDownloads() {
-    return this._restoringSession ||
-           (!DownloadsCommon.useToolkitUI && this._firstSessionCompleted);
-  },
-
-  /**
-   * True if we've ever completed a session with the Downloads Panel enabled.
-   */
-  get _firstSessionCompleted() {
-    return Services.prefs
-                   .getBoolPref("browser.download.panel.firstSessionCompleted");
-  },
-
-  set _firstSessionCompleted(aValue) {
-    Services.prefs.setBoolPref("browser.download.panel.firstSessionCompleted",
-                               aValue);
-    return aValue;
-  },
-
-  /**
-   * Ensures that persistent download data is reloaded at the appropriate time.
-   */
-  _ensureDataLoaded: function DS_ensureDataLoaded()
-  {
-    if (!this._downloadsServiceInitialized) {
-      return;
-    }
-
-    // If the previous session has been already restored, then we ensure that
-    // all the downloads are loaded.  Otherwise, we only ensure that the active
-    // downloads from the previous session are loaded.
-    DownloadsCommon.ensureAllPersistentDataLoaded(!this._recoverAllDownloads);
-  }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-//// Module
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DownloadsStartup]);
diff --git a/components/downloads/DownloadsTaskbar.jsm b/components/downloads/DownloadsTaskbar.jsm
deleted file mode 100644
index cf915ab..0000000
--- a/components/downloads/DownloadsTaskbar.jsm
+++ /dev/null
@@ -1,177 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * Handles the download progress indicator in the taskbar.
- */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [
-  "DownloadsTaskbar",
-];
-
-////////////////////////////////////////////////////////////////////////////////
-//// Globals
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "Downloads",
-                                  "resource://gre/modules/Downloads.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
-                                  "resource:///modules/RecentWindow.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
-                                  "resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyGetter(this, "gWinTaskbar", function () {
-  if (!("@mozilla.org/windows-taskbar;1" in Cc)) {
-    return null;
-  }
-  let winTaskbar = Cc["@mozilla.org/windows-taskbar;1"]
-                     .getService(Ci.nsIWinTaskbar);
-  return winTaskbar.available && winTaskbar;
-});
-
-XPCOMUtils.defineLazyGetter(this, "gMacTaskbarProgress", function () {
-  return ("@mozilla.org/widget/macdocksupport;1" in Cc) &&
-         Cc["@mozilla.org/widget/macdocksupport;1"]
-           .getService(Ci.nsITaskbarProgress);
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsTaskbar
-
-/**
- * Handles the download progress indicator in the taskbar.
- */
-this.DownloadsTaskbar = {
-  /**
-   * Underlying DownloadSummary providing the aggregate download information, or
-   * null if the indicator has never been initialized.
-   */
-  _summary: null,
-
-  /**
-   * nsITaskbarProgress object to which download information is dispatched.
-   * This can be null if the indicator has never been initialized or if the
-   * indicator is currently hidden on Windows.
-   */
-  _taskbarProgress: null,
-
-  /**
-   * This method is called after a new browser window is opened, and ensures
-   * that the download progress indicator is displayed in the taskbar.
-   *
-   * On Windows, the indicator is attached to the first browser window that
-   * calls this method.  When the window is closed, the indicator is moved to
-   * another browser window, if available, in no particular order.  When there
-   * are no browser windows visible, the indicator is hidden.
-   *
-   * On Mac OS X, the indicator is initialized globally when this method is
-   * called for the first time.  Subsequent calls have no effect.
-   *
-   * @param aBrowserWindow
-   *        nsIDOMWindow object of the newly opened browser window to which the
-   *        indicator may be attached.
-   */
-  registerIndicator(aBrowserWindow) {
-    if (!this._taskbarProgress) {
-      if (gMacTaskbarProgress) {
-        // On Mac OS X, we have to register the global indicator only once.
-        this._taskbarProgress = gMacTaskbarProgress;
-        // Free the XPCOM reference on shutdown, to prevent detecting a leak.
-        Services.obs.addObserver(() => {
-          this._taskbarProgress = null;
-          gMacTaskbarProgress = null;
-        }, "quit-application-granted", false);
-      } else if (gWinTaskbar) {
-        // On Windows, the indicator is currently hidden because we have no
-        // previous browser window, thus we should attach the indicator now.
-        this._attachIndicator(aBrowserWindow);
-      } else {
-        // The taskbar indicator is not available on this platform.
-        return;
-      }
-    }
-
-    // Ensure that the DownloadSummary object will be created asynchronously.
-    if (!this._summary) {
-      Downloads.getSummary(Downloads.ALL).then(summary => {
-        // In case the method is re-entered, we simply ignore redundant
-        // invocations of the callback, instead of keeping separate state.
-        if (this._summary) {
-          return;
-        }
-        this._summary = summary;
-        return this._summary.addView(this);
-      }).then(null, Cu.reportError);
-    }
-  },
-
-  /**
-   * On Windows, attaches the taskbar indicator to the specified browser window.
-   */
-  _attachIndicator(aWindow) {
-    // Activate the indicator on the specified window.
-    let docShell = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
-                          .getInterface(Ci.nsIWebNavigation)
-                          .QueryInterface(Ci.nsIDocShellTreeItem).treeOwner
-                          .QueryInterface(Ci.nsIInterfaceRequestor)
-                          .getInterface(Ci.nsIXULWindow).docShell;
-    this._taskbarProgress = gWinTaskbar.getTaskbarProgress(docShell);
-
-    // If the DownloadSummary object has already been created, we should update
-    // the state of the new indicator, otherwise it will be updated as soon as
-    // the DownloadSummary view is registered.
-    if (this._summary) {
-      this.onSummaryChanged();
-    }
-
-    aWindow.addEventListener("unload", () => {
-      // Locate another browser window, excluding the one being closed.
-      let browserWindow = RecentWindow.getMostRecentBrowserWindow();
-      if (browserWindow) {
-        // Move the progress indicator to the other browser window.
-        this._attachIndicator(browserWindow);
-      } else {
-        // The last browser window has been closed.  We remove the reference to
-        // the taskbar progress object so that the indicator will be registered
-        // again on the next browser window that is opened.
-        this._taskbarProgress = null;
-      }
-    }, false);
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// DownloadSummary view
-
-  onSummaryChanged() {
-    // If the last browser window has been closed, we have no indicator any more.
-    if (!this._taskbarProgress) {
-      return;
-    }
-
-    if (this._summary.allHaveStopped || this._summary.progressTotalBytes == 0) {
-      this._taskbarProgress.setProgressState(
-                               Ci.nsITaskbarProgress.STATE_NO_PROGRESS, 0, 0);
-    } else {
-      // For a brief moment before completion, some download components may
-      // report more transferred bytes than the total number of bytes.  Thus,
-      // ensure that we never break the expectations of the progress indicator.
-      let progressCurrentBytes = Math.min(this._summary.progressTotalBytes,
-                                          this._summary.progressCurrentBytes);
-      this._taskbarProgress.setProgressState(
-                               Ci.nsITaskbarProgress.STATE_NORMAL,
-                               progressCurrentBytes,
-                               this._summary.progressTotalBytes);
-    }
-  },
-};
diff --git a/components/downloads/DownloadsUI.js b/components/downloads/DownloadsUI.js
deleted file mode 100644
index afdbda8..0000000
--- a/components/downloads/DownloadsUI.js
+++ /dev/null
@@ -1,151 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * This component implements the nsIDownloadManagerUI interface and opens the
- * downloads panel in the most recent browser window when requested.
- *
- * If a specific preference is set, this component transparently forwards all
- * calls to the original implementation in Toolkit, that shows the window UI.
- */
-
-"use strict";
-
-////////////////////////////////////////////////////////////////////////////////
-//// Globals
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
-                                  "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyServiceGetter(this, "gBrowserGlue",
-                                   "@mozilla.org/browser/browserglue;1",
-                                   "nsIBrowserGlue");
-XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
-                                  "resource:///modules/RecentWindow.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsUI
-
-function DownloadsUI()
-{
-  XPCOMUtils.defineLazyGetter(this, "_toolkitUI", function () {
-    // Create Toolkit's nsIDownloadManagerUI implementation.
-    return Components.classesByID["{7dfdf0d1-aff6-4a34-bad1-d0fe74601642}"]
-                     .getService(Ci.nsIDownloadManagerUI);
-  });
-}
-
-DownloadsUI.prototype = {
-  classID: Components.ID("{4d99321e-d156-455b-81f7-e7aa2308134f}"),
-
-  _xpcom_factory: XPCOMUtils.generateSingletonFactory(DownloadsUI),
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsISupports
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIDownloadManagerUI]),
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsIDownloadManagerUI
-
-  show: function DUI_show(aWindowContext, aDownload, aReason, aUsePrivateUI)
-  {
-    if (DownloadsCommon.useToolkitUI && !PrivateBrowsingUtils.isWindowPrivate(aWindowContext)) {
-      this._toolkitUI.show(aWindowContext, aDownload, aReason, aUsePrivateUI);
-      return;
-    }
-
-    if (!aReason) {
-      aReason = Ci.nsIDownloadManagerUI.REASON_USER_INTERACTED;
-    }
-
-    if (aReason == Ci.nsIDownloadManagerUI.REASON_NEW_DOWNLOAD) {
-      const kMinimized = Ci.nsIDOMChromeWindow.STATE_MINIMIZED;
-      let browserWin = gBrowserGlue.getMostRecentBrowserWindow();
-
-      if (!browserWin || browserWin.windowState == kMinimized) {
-        this._showDownloadManagerUI(aWindowContext, aUsePrivateUI);
-      }
-      else {
-        // If the indicator is visible, then new download notifications are
-        // already handled by the panel service.
-        browserWin.DownloadsButton.checkIsVisible(function(isVisible) {
-          if (!isVisible) {
-            this._showDownloadManagerUI(aWindowContext, aUsePrivateUI);
-          }
-        }.bind(this));
-      }
-    } else {
-      this._showDownloadManagerUI(aWindowContext, aUsePrivateUI);
-    }
-  },
-
-  get visible()
-  {
-    // If we're still using the toolkit downloads manager, delegate the call
-    // to it. Otherwise, return true for now, until we decide on how we want
-    // to indicate that a new download has started if a browser window is
-    // not available or minimized.
-    return DownloadsCommon.useToolkitUI ? this._toolkitUI.visible : true;
-  },
-
-  getAttention: function DUI_getAttention()
-  {
-    if (DownloadsCommon.useToolkitUI) {
-      this._toolkitUI.getAttention();
-    }
-  },
-
-  /**
-   * Helper function that opens the download manager UI.
-   */
-  _showDownloadManagerUI:
-  function DUI_showDownloadManagerUI(aWindowContext, aUsePrivateUI)
-  {
-    // If we weren't given a window context, try to find a browser window
-    // to use as our parent - and if that doesn't work, error out and give up.
-    let parentWindow = aWindowContext;
-    if (!parentWindow) {
-      parentWindow = RecentWindow.getMostRecentBrowserWindow({ private: !!aUsePrivateUI });
-      if (!parentWindow) {
-        Components.utils.reportError(
-          "Couldn't find a browser window to open the Places Downloads View " +
-          "from.");
-        return;
-      }
-    }
-
-    // If window is private then show it in a tab.
-    if (PrivateBrowsingUtils.isWindowPrivate(parentWindow)) {
-      parentWindow.openUILinkIn("about:downloads", "tab");
-      return;
-    } else {
-      let organizer = Services.wm.getMostRecentWindow("Places:Organizer");
-      if (!organizer) {
-        parentWindow.openDialog("chrome://browser/content/places/places.xul",
-                                "", "chrome,toolbar=yes,dialog=no,resizable",
-                                "Downloads");
-      } else {
-        organizer.PlacesOrganizer.selectLeftPaneQuery("Downloads");
-        organizer.focus();
-      }
-    }
-  }
-};
-
-////////////////////////////////////////////////////////////////////////////////
-//// Module
-
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DownloadsUI]);
diff --git a/components/downloads/DownloadsViewUI.jsm b/components/downloads/DownloadsViewUI.jsm
deleted file mode 100644
index ede593e..0000000
--- a/components/downloads/DownloadsViewUI.jsm
+++ /dev/null
@@ -1,250 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
- * This module is imported by code that uses the "download.xml" binding, and
- * provides prototypes for objects that handle input and display information.
- */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [
-  "DownloadsViewUI",
-];
-
-const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
-                                  "resource://gre/modules/DownloadUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
-                                  "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
-                                  "resource://gre/modules/osfile.jsm");
-
-this.DownloadsViewUI = {};
-
-/**
- * A download element shell is responsible for handling the commands and the
- * displayed data for a single element that uses the "download.xml" binding.
- *
- * The information to display is obtained through the associated Download object
- * from the JavaScript API for downloads, and commands are executed using a
- * combination of Download methods and DownloadsCommon.jsm helper functions.
- *
- * Specialized versions of this shell must be defined, and they are required to
- * implement the "download" property or getter. Currently these objects are the
- * HistoryDownloadElementShell and the DownloadsViewItem for the panel. The
- * history view may use a HistoryDownload object in place of a Download object.
- */
-this.DownloadsViewUI.DownloadElementShell = function () {}
-
-this.DownloadsViewUI.DownloadElementShell.prototype = {
-  /**
-   * The richlistitem for the download, initialized by the derived object.
-   */
-  element: null,
-
-  /**
-   * URI string for the file type icon displayed in the download element.
-   */
-  get image() {
-    if (!this.download.target.path) {
-      // Old history downloads may not have a target path.
-      return "moz-icon://.unknown?size=32";
-    }
-
-    // When a download that was previously in progress finishes successfully, it
-    // means that the target file now exists and we can extract its specific
-    // icon, for example from a Windows executable. To ensure that the icon is
-    // reloaded, however, we must change the URI used by the XUL image element,
-    // for example by adding a query parameter. This only works if we add one of
-    // the parameters explicitly supported by the nsIMozIconURI interface.
-    return "moz-icon://" + this.download.target.path + "?size=32" +
-           (this.download.succeeded ? "&state=normal" : "");
-  },
-
-  /**
-   * The user-facing label for the download. This is normally the leaf name of
-   * the download target file. In case this is a very old history download for
-   * which the target file is unknown, the download source URI is displayed.
-   */
-  get displayName() {
-    if (!this.download.target.path) {
-      return this.download.source.url;
-    }
-    return OS.Path.basename(this.download.target.path);
-  },
-
-  get extendedDisplayName() {
-    let s = DownloadsCommon.strings;
-    let referrer = this.download.source.referrer ||
-                   this.download.source.url;
-    let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
-    return s.statusSeparator(this.displayName, displayHost);
-  },
-  
-  get extendedDisplayNameTip() {
-    let s = DownloadsCommon.strings;
-    let referrer = this.download.source.referrer ||
-                   this.download.source.url;
-    let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
-    return s.statusSeparator(this.displayName, fullHost);
-  },
-
-  /**
-   * The progress element for the download, or undefined in case the XBL binding
-   * has not been applied yet.
-   */
-  get _progressElement() {
-    if (!this.__progressElement) {
-      // If the element is not available now, we will try again the next time.
-      this.__progressElement =
-           this.element.ownerDocument.getAnonymousElementByAttribute(
-                                         this.element, "anonid",
-                                         "progressmeter");
-    }
-    return this.__progressElement;
-  },
-
-  /**
-   * Processes a major state change in the user interface, then proceeds with
-   * the normal progress update. This function is not called for every progress
-   * update in order to improve performance.
-   */
-  _updateState() {
-    this.element.setAttribute("displayName", this.displayName);
-    this.element.setAttribute("extendedDisplayName", this.extendedDisplayName);
-    this.element.setAttribute("extendedDisplayNameTip", this.extendedDisplayNameTip);
-    this.element.setAttribute("image", this.image);
-    this.element.setAttribute("state",
-                              DownloadsCommon.stateOfDownload(this.download));
-
-    // Since state changed, reset the time left estimation.
-    this.lastEstimatedSecondsLeft = Infinity;
-
-    this._updateProgress();
-  },
-
-  /**
-   * Updates the elements that change regularly for in-progress downloads,
-   * namely the progress bar and the status line.
-   */
-  _updateProgress() {
-    if (this.download.succeeded) {
-      // We only need to add or remove this attribute for succeeded downloads.
-      if (this.download.target.exists) {
-       this.element.setAttribute("exists", "true");
-      } else {
-        this.element.removeAttribute("exists");
-      }
-    }
-
-    // The progress bar is only displayed for in-progress downloads.
-    if (this.download.hasProgress) {
-      this.element.setAttribute("progressmode", "normal");
-      this.element.setAttribute("progress", this.download.progress);
-    } else {
-      this.element.setAttribute("progressmode", "undetermined");
-    }
-
-    // Dispatch the ValueChange event for accessibility, if possible.
-    if (this._progressElement) {
-      let event = this.element.ownerDocument.createEvent("Events");
-      event.initEvent("ValueChange", true, true);
-      this._progressElement.dispatchEvent(event);
-    }
-
-    let status = this.statusTextAndTip;
-    this.element.setAttribute("status", status.text);
-    this.element.setAttribute("statusTip", status.tip);
-  },
-
-  lastEstimatedSecondsLeft: Infinity,
-
-  /**
-   * Returns the text for the status line and the associated tooltip. These are
-   * returned by a single property because they are computed together. The
-   * result may be overridden by derived objects.
-   */
-  get statusTextAndTip() this.rawStatusTextAndTip,
-
-  /**
-   * Derived objects may call this to get the status text.
-   */
-  get rawStatusTextAndTip() {
-    const nsIDM = Ci.nsIDownloadManager;
-    let s = DownloadsCommon.strings;
-
-    let text = "";
-    let tip = "";
-
-    if (!this.download.stopped) {
-      let totalBytes = this.download.hasProgress ? this.download.totalBytes
-                                                 : -1;
-      // By default, extended status information including the individual
-      // download rate is displayed in the tooltip. The history view overrides
-      // the getter and displays the datails in the main area instead.
-      [text] = DownloadUtils.getDownloadStatusNoRate(
-                                          this.download.currentBytes,
-                                          totalBytes,
-                                          this.download.speed,
-                                          this.lastEstimatedSecondsLeft);
-      let newEstimatedSecondsLeft;
-      [tip, newEstimatedSecondsLeft] = DownloadUtils.getDownloadStatus(
-                                          this.download.currentBytes,
-                                          totalBytes,
-                                          this.download.speed,
-                                          this.lastEstimatedSecondsLeft);
-      this.lastEstimatedSecondsLeft = newEstimatedSecondsLeft;
-    } else if (this.download.canceled && this.download.hasPartialData) {
-      let totalBytes = this.download.hasProgress ? this.download.totalBytes
-                                                 : -1;
-      let transfer = DownloadUtils.getTransferTotal(this.download.currentBytes,
-                                                    totalBytes);
-
-      // We use the same XUL label to display both the state and the amount
-      // transferred, for example "Paused -  1.1 MB".
-      text = s.statusSeparatorBeforeNumber(s.statePaused, transfer);
-    } else if (!this.download.succeeded && !this.download.canceled &&
-               !this.download.error) {
-      text = s.stateStarting;
-    } else {
-      let stateLabel;
-
-      if (this.download.succeeded) {
-        // For completed downloads, show the file size (e.g. "1.5 MB").
-        if (this.download.target.size !== undefined) {
-          let [size, unit] =
-            DownloadUtils.convertByteUnits(this.download.target.size);
-          stateLabel = s.sizeWithUnits(size, unit);
-        } else {
-          // History downloads may not have a size defined.
-          stateLabel = s.sizeUnknown;
-        }
-      } else if (this.download.canceled) {
-        stateLabel = s.stateCanceled;
-      } else if (this.download.error.becauseBlockedByParentalControls) {
-        stateLabel = s.stateBlockedParentalControls;
-      } else if (this.download.error.becauseBlockedByReputationCheck) {
-        stateLabel = s.stateDirty;
-      } else {
-        stateLabel = s.stateFailed;
-      }
-
-      let referrer = this.download.source.referrer || this.download.source.url;
-      let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
-
-      let date = new Date(this.download.endTime);
-      let [displayDate, fullDate] = DownloadUtils.getReadableDates(date);
-
-      let firstPart = s.statusSeparator(stateLabel, displayHost);
-      text = s.statusSeparator(firstPart, displayDate);
-      tip = s.statusSeparator(fullHost, fullDate);
-    }
-
-    return { text, tip: tip || text };
-  },
-};
diff --git a/components/downloads/content/allDownloadsViewOverlay.css b/components/downloads/content/allDownloadsViewOverlay.css
deleted file mode 100644
index c062ae4..0000000
--- a/components/downloads/content/allDownloadsViewOverlay.css
+++ /dev/null
@@ -1,56 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * The downloads richlistbox may list thousands of items, and it turns out
- * XBL binding attachment, and even more so detachment, is a performance hog.
- * This hack makes sure we don't apply any binding to inactive items (inactive
- * items are history downloads that haven't been in the visible area).
- * We can do this because the richlistbox implementation does not interact
- * much with the richlistitem binding.  However, this may turn out to have
- * some side effects (see bug 828111 for the details).
- *
- * We might be able to do away with this workaround once bug 653881 is fixed.
- */
-richlistitem.download {
-  -moz-binding: none;
-}
-
-richlistitem.download[active] {
-  -moz-binding: url('chrome://browser/content/downloads/download.xml#download-full-ui');
-}
-
-richlistitem.download[active]:-moz-any([state="-1"],/* Starting (initial) */
-                                       [state="0"], /* Downloading        */
-                                       [state="4"], /* Paused             */
-                                       [state="5"], /* Starting (queued)  */
-                                       [state="7"]) /* Scanning           */
-{
-  -moz-binding: url('chrome://browser/content/downloads/download.xml#download-in-progress-full-ui');
-}
-
-.download-state:not(          [state="0"]  /* Downloading        */)
-                                           .downloadPauseMenuItem,
-.download-state:not(          [state="4"]  /* Paused             */)
-                                           .downloadResumeMenuItem,
-.download-state:not(:-moz-any([state="2"], /* Failed             */
-                              [state="4"]) /* Paused             */)
-                                           .downloadCancelMenuItem,
-.download-state[state]:not(:-moz-any([state="1"], /* Finished           */
-                                     [state="2"], /* Failed             */
-                                     [state="3"], /* Canceled           */
-                                     [state="6"], /* Blocked (parental) */
-                                     [state="8"], /* Blocked (dirty)    */
-                                     [state="9"]) /* Blocked (policy)   */)
-                                           .downloadRemoveFromHistoryMenuItem,
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="0"], /* Downloading        */
-                              [state="1"], /* Finished           */
-                              [state="4"], /* Paused             */
-                              [state="5"]) /* Starting (queued)  */)
-                                           .downloadShowMenuItem,
-.download-state[state="7"] /* Scanning */  .downloadCommandsSeparator
-{
-  display: none;
-}
diff --git a/components/downloads/content/allDownloadsViewOverlay.js b/components/downloads/content/allDownloadsViewOverlay.js
deleted file mode 100644
index 4830f21..0000000
--- a/components/downloads/content/allDownloadsViewOverlay.js
+++ /dev/null
@@ -1,1399 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadUtils",
-                                  "resource://gre/modules/DownloadUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
-                                  "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsViewUI",
-                                  "resource:///modules/DownloadsViewUI.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
-                                  "resource://gre/modules/FileUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
-                                  "resource://gre/modules/osfile.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Promise",
-                                  "resource://gre/modules/Promise.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
-                                  "resource:///modules/RecentWindow.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
-                                  "resource://gre/modules/Services.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
-                                  "resource://gre/modules/Task.jsm");
-
-const nsIDM = Ci.nsIDownloadManager;
-
-const DESTINATION_FILE_URI_ANNO  = "downloads/destinationFileURI";
-const DOWNLOAD_META_DATA_ANNO    = "downloads/metaData";
-
-const DOWNLOAD_VIEW_SUPPORTED_COMMANDS =
- ["cmd_delete", "cmd_copy", "cmd_paste", "cmd_selectAll",
-  "downloadsCmd_pauseResume", "downloadsCmd_cancel",
-  "downloadsCmd_open", "downloadsCmd_show", "downloadsCmd_retry",
-  "downloadsCmd_openReferrer", "downloadsCmd_clearDownloads"];
-
-/**
- * Represents a download from the browser history. It implements part of the
- * interface of the Download object.
- *
- * @param aPlacesNode
- *        The Places node from which the history download should be initialized.
- */
-function HistoryDownload(aPlacesNode) {
-  // TODO (bug 829201): history downloads should get the referrer from Places.
-  this.source = {
-    url: aPlacesNode.uri,
-  };
-  this.target = {
-    path: undefined,
-    exists: false,
-    size: undefined,
-  };
-
-  // In case this download cannot obtain its end time from the Places metadata,
-  // use the time from the Places node, that is the start time of the download.
-  this.endTime = aPlacesNode.time / 1000;
-}
-
-HistoryDownload.prototype = {
-  /**
-   * Pushes information from Places metadata into this object.
-   */
-  updateFromMetaData(metaData) {
-    try {
-      this.target.path = Cc["@mozilla.org/network/protocol;1?name=file"]
-                           .getService(Ci.nsIFileProtocolHandler)
-                           .getFileFromURLSpec(metaData.targetFileSpec).path;
-    } catch (ex) {
-      this.target.path = undefined;
-    }
-
-    if ("state" in metaData) {
-      this.succeeded = metaData.state == nsIDM.DOWNLOAD_FINISHED;
-      this.error = metaData.state == nsIDM.DOWNLOAD_FAILED
-                   ? { message: "History download failed." }
-                   : metaData.state == nsIDM.DOWNLOAD_BLOCKED_PARENTAL
-                   ? { becauseBlockedByParentalControls: true }
-                   : metaData.state == nsIDM.DOWNLOAD_DIRTY
-                   ? { becauseBlockedByReputationCheck: true }
-                   : null;
-      this.canceled = metaData.state == nsIDM.DOWNLOAD_CANCELED ||
-                      metaData.state == nsIDM.DOWNLOAD_PAUSED;
-      this.endTime = metaData.endTime;
-
-      // Normal history downloads are assumed to exist until the user interface
-      // is refreshed, at which point these values may be updated.
-      this.target.exists = true;
-      this.target.size = metaData.fileSize;
-    } else {
-      // Metadata might be missing from a download that has started but hasn't
-      // stopped already. Normally, this state is overridden with the one from
-      // the corresponding in-progress session download. But if the browser is
-      // terminated abruptly and additionally the file with information about
-      // in-progress downloads is lost, we may end up using this state. We use
-      // the failed state to allow the download to be restarted.
-      //
-      // On the other hand, if the download is missing the target file
-      // annotation as well, it is just a very old one, and we can assume it
-      // succeeded.
-      this.succeeded = !this.target.path;
-      this.error = this.target.path ? { message: "Unstarted download." } : null;
-      this.canceled = false;
-
-      // These properties may be updated if the user interface is refreshed.
-      this.target.exists = false;
-      this.target.size = undefined;
-    }
-  },
-
-  /**
-   * History downloads are never in progress.
-   */
-  stopped: true,
-
-  /**
-   * No percentage indication is shown for history downloads.
-   */
-  hasProgress: false,
-
-  /**
-   * History downloads cannot be restarted using their partial data, even if
-   * they are indicated as paused in their Places metadata. The only way is to
-   * use the information from a persisted session download, that will be shown
-   * instead of the history download. In case this session download is not
-   * available, we show the history download as canceled, not paused.
-   */
-  hasPartialData: false,
-
-  /**
-   * This method mimicks the "start" method of session downloads, and is called
-   * when the user retries a history download.
-   *
-   * At present, we always ask the user for a new target path when retrying a
-   * history download. In the future we may consider reusing the known target
-   * path if the folder still exists and the file name is not already used,
-   * except when the user preferences indicate that the target path should be
-   * requested every time a new download is started.
-   */
-  start() {
-    let browserWin = RecentWindow.getMostRecentBrowserWindow();
-    let initiatingDoc = browserWin ? browserWin.document : document;
-
-    // Do not suggest a file name if we don't know the original target.
-    let leafName = this.target.path ? OS.Path.basename(this.target.path) : null;
-    DownloadURL(this.source.url, leafName, initiatingDoc);
-
-    return Promise.resolve();
-  },
-
-  /**
-   * This method mimicks the "refresh" method of session downloads, except that
-   * it cannot notify that the data changed to the Downloads View.
-   */
-  refresh: Task.async(function* () {
-    try {
-      this.target.size = (yield OS.File.stat(this.target.path)).size;
-      this.target.exists = true;
-    } catch (ex) {
-      // We keep the known file size from the metadata, if any.
-      this.target.exists = false;
-    }
-  }),
-};
-
-/**
- * A download element shell is responsible for handling the commands and the
- * displayed data for a single download view element.
- *
- * The shell may contain a session download, a history download, or both.  When
- * both a history and a session download are present, the session download gets
- * priority and its information is displayed.
- *
- * On construction, a new richlistitem is created, and can be accessed through
- * the |element| getter. The shell doesn't insert the item in a richlistbox, the
- * caller must do it and remove the element when it's no longer needed.
- *
- * The caller is also responsible for forwarding status notifications for
- * session downloads, calling the onStateChanged and onChanged methods.
- *
- * @param [optional] aSessionDownload
- *        The session download, required if aHistoryDownload is not set.
- * @param [optional] aHistoryDownload
- *        The history download, required if aSessionDownload is not set.
- */
-function HistoryDownloadElementShell(aSessionDownload, aHistoryDownload) {
-  this.element = document.createElement("richlistitem");
-  this.element._shell = this;
-
-  this.element.classList.add("download");
-  this.element.classList.add("download-state");
-
-  if (aSessionDownload) {
-    this.sessionDownload = aSessionDownload;
-  }
-  if (aHistoryDownload) {
-    this.historyDownload = aHistoryDownload;
-  }
-}
-
-HistoryDownloadElementShell.prototype = {
-  __proto__: DownloadsViewUI.DownloadElementShell.prototype,
-
-  /**
-   * Manages the "active" state of the shell.  By default all the shells without
-   * a session download are inactive, thus their UI is not updated.  They must
-   * be activated when entering the visible area.  Session downloads are always
-   * active.
-   */
-  ensureActive: function DES_ensureActive() {
-    if (!this._active) {
-      this._active = true;
-      this.element.setAttribute("active", true);
-      this._updateUI();
-    }
-  },
-  get active() !!this._active,
-
-  /**
-   * Overrides the base getter to return the Download or HistoryDownload object
-   * for displaying information and executing commands in the user interface.
-   */
-  get download() this._sessionDownload || this._historyDownload,
-
-  _sessionDownload: null,
-  get sessionDownload() this._sessionDownload,
-  set sessionDownload(aValue) {
-    if (this._sessionDownload != aValue) {
-      if (!aValue && !this._historyDownload) {
-        throw new Error("Should always have either a Download or a HistoryDownload");
-      }
-
-      this._sessionDownload = aValue;
-
-      this.ensureActive();
-      this._updateUI();
-    }
-    return aValue;
-  },
-
-  _historyDownload: null,
-  get historyDownload() this._historyDownload,
-  set historyDownload(aValue) {
-    if (this._historyDownload != aValue) {
-      if (!aValue && !this._sessionDownload) {
-        throw new Error("Should always have either a Download or a HistoryDownload");
-      }
-
-      this._historyDownload = aValue;
-
-      // We don't need to update the UI if we had a session data item, because
-      // the places information isn't used in this case.
-      if (!this._sessionDownload) {
-        this._updateUI();
-      }
-    }
-    return aValue;
-  },
-
-  _updateUI() {
-    // There is nothing to do if the item has always been invisible.
-    if (!this.active) {
-      return;
-    }
-
-    // Since the state changed, we may need to check the target file again.
-    this._targetFileChecked = false;
-
-    this._updateState();
-  },
-
-  get statusTextAndTip() {
-    let status = this.rawStatusTextAndTip;
-
-    // The base object would show extended progress information in the tooltip,
-    // but we move this to the main view and never display a tooltip.
-    if (!this.download.stopped) {
-      status.text = status.tip;
-    }
-    status.tip = "";
-
-    return status;
-  },
-
-  onStateChanged() {
-    this.element.setAttribute("image", this.image);
-    this.element.setAttribute("state",
-                              DownloadsCommon.stateOfDownload(this.download));
-
-    if (this.element.selected) {
-      goUpdateDownloadCommands();
-    } else {
-      goUpdateCommand("downloadsCmd_clearDownloads");
-    }
-  },
-
-  onChanged() {
-    this._updateProgress();
-  },
-
-  /* nsIController */
-  isCommandEnabled: function DES_isCommandEnabled(aCommand) {
-    // The only valid command for inactive elements is cmd_delete.
-    if (!this.active && aCommand != "cmd_delete")
-      return false;
-    switch (aCommand) {
-      case "downloadsCmd_open":
-        // This property is false if the download did not succeed.
-        return this.download.target.exists;
-      case "downloadsCmd_show":
-        // TODO: Bug 827010 - Handle part-file asynchronously.
-        if (this._sessionDownload && this.download.target.partFilePath) {
-          let partFile = new FileUtils.File(this.download.target.partFilePath);
-          if (partFile.exists()) {
-            return true;
-          }
-        }
-
-        // This property is false if the download did not succeed.
-        return this.download.target.exists;
-      case "downloadsCmd_pauseResume":
-        return this.download.hasPartialData && !this.download.error;
-      case "downloadsCmd_retry":
-        return this.download.canceled || this.download.error;
-      case "downloadsCmd_openReferrer":
-        return !!this.download.source.referrer;
-      case "cmd_delete":
-        // We don't want in-progress downloads to be removed accidentally.
-        return this.download.stopped;
-      case "downloadsCmd_cancel":
-        return !!this._sessionDownload;
-    }
-    return false;
-  },
-
-  /* nsIController */
-  doCommand: function DES_doCommand(aCommand) {
-    switch (aCommand) {
-      case "downloadsCmd_open": {
-        let file = new FileUtils.File(this.download.target.path);
-        DownloadsCommon.openDownloadedFile(file, null, window);
-        break;
-      }
-      case "downloadsCmd_show": {
-        let file = new FileUtils.File(this.download.target.path);
-        DownloadsCommon.showDownloadedFile(file);
-        break;
-      }
-      case "downloadsCmd_openReferrer": {
-        openURL(this.download.source.referrer);
-        break;
-      }
-      case "downloadsCmd_cancel": {
-        this.download.cancel().catch(() => {});
-        this.download.removePartialData().catch(Cu.reportError);
-        break;
-      }
-      case "cmd_delete": {
-        if (this._sessionDownload) {
-          DownloadsCommon.removeAndFinalizeDownload(this.download);
-        }
-        if (this._historyDownload) {
-          let uri = NetUtil.newURI(this.download.source.url);
-          PlacesUtils.bhistory.removePage(uri);
-        }
-        break;
-      }
-      case "downloadsCmd_retry": {
-        // Errors when retrying are already reported as download failures.
-        this.download.start().catch(() => {});
-        break;
-      }
-      case "downloadsCmd_pauseResume": {
-        // This command is only enabled for session downloads.
-        if (this.download.stopped) {
-          this.download.start();
-        } else {
-          this.download.cancel();
-        }
-        break;
-      }
-    }
-  },
-
-  // Returns whether or not the download handled by this shell should
-  // show up in the search results for the given term.  Both the display
-  // name for the download and the url are searched.
-  matchesSearchTerm: function DES_matchesSearchTerm(aTerm) {
-    if (!aTerm)
-      return true;
-    aTerm = aTerm.toLowerCase();
-    return this.displayName.toLowerCase().contains(aTerm) ||
-           this.download.source.url.toLowerCase().contains(aTerm);
-  },
-
-  // Handles return keypress on the element (the keypress listener is
-  // set in the DownloadsPlacesView object).
-  doDefaultCommand: function DES_doDefaultCommand() {
-    function getDefaultCommandForState(aState) {
-      switch (aState) {
-        case nsIDM.DOWNLOAD_FINISHED:
-          return "downloadsCmd_open";
-        case nsIDM.DOWNLOAD_PAUSED:
-          return "downloadsCmd_pauseResume";
-        case nsIDM.DOWNLOAD_NOTSTARTED:
-        case nsIDM.DOWNLOAD_QUEUED:
-          return "downloadsCmd_cancel";
-        case nsIDM.DOWNLOAD_FAILED:
-        case nsIDM.DOWNLOAD_CANCELED:
-          return "downloadsCmd_retry";
-        case nsIDM.DOWNLOAD_SCANNING:
-          return "downloadsCmd_show";
-        case nsIDM.DOWNLOAD_BLOCKED_PARENTAL:
-        case nsIDM.DOWNLOAD_DIRTY:
-        case nsIDM.DOWNLOAD_BLOCKED_POLICY:
-          return "downloadsCmd_openReferrer";
-      }
-      return "";
-    }
-    let state = DownloadsCommon.stateOfDownload(this.download);
-    let command = getDefaultCommandForState(state);
-    if (command && this.isCommandEnabled(command))
-      this.doCommand(command);
-  },
-
-  /**
-   * This method is called by the outer download view, after the controller
-   * commands have already been updated. In case we did not check for the
-   * existence of the target file already, we can do it now and then update
-   * the commands as needed.
-   */
-  onSelect: function DES_onSelect() {
-    if (!this.active)
-      return;
-
-    // If this is a history download for which no target file information is
-    // available, we cannot retrieve information about the target file.
-    if (!this.download.target.path) {
-      return;
-    }
-
-    // Start checking for existence.  This may be done twice if onSelect is
-    // called again before the information is collected.
-    if (!this._targetFileChecked) {
-      this._checkTargetFileOnSelect().catch(Cu.reportError);
-    }
-  },
-
-  _checkTargetFileOnSelect: Task.async(function* () {
-    try {
-      yield this.download.refresh();
-    } finally {
-      // Do not try to check for existence again if this failed once.
-      this._targetFileChecked = true;
-    }
-
-    // Update the commands only if the element is still selected.
-    if (this.element.selected) {
-      goUpdateDownloadCommands();
-    }
-
-    // Ensure the interface has been updated based on the new values. We need to
-    // do this because history downloads can't trigger update notifications.
-    this._updateProgress();
-  }),
-};
-
-/**
- * A Downloads Places View is a places view designed to show a places query
- * for history downloads alongside the session downloads.
- *
- * As we don't use the places controller, some methods implemented by other
- * places views are not implemented by this view.
- *
- * A richlistitem in this view can represent either a past download or a session
- * download, or both. Session downloads are shown first in the view, and as long
- * as they exist they "collapses" their history "counterpart" (So we don't show two
- * items for every download).
- */
-function DownloadsPlacesView(aRichListBox, aActive = true) {
-  this._richlistbox = aRichListBox;
-  this._richlistbox._placesView = this;
-  window.controllers.insertControllerAt(0, this);
-
-  // Map download URLs to download element shells regardless of their type
-  this._downloadElementsShellsForURI = new Map();
-
-  // Map download data items to their element shells.
-  this._viewItemsForDownloads = new WeakMap();
-
-  // Points to the last session download element. We keep track of this
-  // in order to keep all session downloads above past downloads.
-  this._lastSessionDownloadElement = null;
-
-  this._searchTerm = "";
-
-  this._active = aActive;
-
-  // Register as a downloads view. The places data will be initialized by
-  // the places setter.
-  this._initiallySelectedElement = null;
-  this._downloadsData = DownloadsCommon.getData(window.opener || window);
-  this._downloadsData.addView(this);
-
-  // Get the Download button out of the attention state since we're about to
-  // view all downloads.
-  DownloadsCommon.getIndicatorData(window).attention = false;
-
-  // Make sure to unregister the view if the window is closed.
-  window.addEventListener("unload", function() {
-    window.controllers.removeController(this);
-    this._downloadsData.removeView(this);
-    this.result = null;
-  }.bind(this), true);
-  // Resizing the window may change items visibility.
-  window.addEventListener("resize", function() {
-    this._ensureVisibleElementsAreActive();
-  }.bind(this), true);
-}
-
-DownloadsPlacesView.prototype = {
-  get associatedElement() this._richlistbox,
-
-  get active() this._active,
-  set active(val) {
-    this._active = val;
-    if (this._active)
-      this._ensureVisibleElementsAreActive();
-    return this._active;
-  },
-
-  /**
-   * This cache exists in order to optimize the load of the Downloads View, when
-   * Places annotations for history downloads must be read. In fact, annotations
-   * are stored in a single table, and reading all of them at once is much more
-   * efficient than an individual query.
-   *
-   * When this property is first requested, it reads the annotations for all the
-   * history downloads and stores them indefinitely.
-   *
-   * The historical annotations are not expected to change for the duration of
-   * the session, except in the case where a session download is running for the
-   * same URI as a history download. To ensure we don't use stale data, URIs
-   * corresponding to session downloads are permanently removed from the cache.
-   * This is a very small mumber compared to history downloads.
-   *
-   * This property returns a Map from each download source URI found in Places
-   * annotations to an object with the format:
-   *
-   * { targetFileSpec, state, endTime, fileSize, ... }
-   *
-   * The targetFileSpec property is the value of "downloads/destinationFileURI",
-   * while the other properties are taken from "downloads/metaData". Any of the
-   * properties may be missing from the object.
-   */
-  get _cachedPlacesMetaData() {
-    if (!this.__cachedPlacesMetaData) {
-      this.__cachedPlacesMetaData = new Map();
-
-      // Read the metadata annotations first, but ignore invalid JSON.
-      for (let result of PlacesUtils.annotations.getAnnotationsWithName(
-                                                 DOWNLOAD_META_DATA_ANNO)) {
-        try {
-          this.__cachedPlacesMetaData.set(result.uri.spec,
-                                          JSON.parse(result.annotationValue));
-        } catch (ex) {}
-      }
-
-      // Add the target file annotations to the metadata.
-      for (let result of PlacesUtils.annotations.getAnnotationsWithName(
-                                                 DESTINATION_FILE_URI_ANNO)) {
-        let metaData = this.__cachedPlacesMetaData.get(result.uri.spec);
-        if (!metaData) {
-          metaData = {};
-          this.__cachedPlacesMetaData.set(result.uri.spec, metaData);
-        }
-        metaData.targetFileSpec = result.annotationValue;
-      }
-    }
-
-    return this.__cachedPlacesMetaData;
-  },
-  __cachedPlacesMetaData: null,
-
-  /**
-   * Reads current metadata from Places annotations for the specified URI, and
-   * returns an object with the format:
-   *
-   * { targetFileSpec, state, endTime, fileSize, ... }
-   *
-   * The targetFileSpec property is the value of "downloads/destinationFileURI",
-   * while the other properties are taken from "downloads/metaData". Any of the
-   * properties may be missing from the object.
-   */
-  _getPlacesMetaDataFor(spec) {
-    let metaData = {};
-
-    try {
-      let uri = NetUtil.newURI(spec);
-      try {
-        metaData = JSON.parse(PlacesUtils.annotations.getPageAnnotation(
-                                          uri, DOWNLOAD_META_DATA_ANNO));
-      } catch (ex) {}
-      metaData.targetFileSpec = PlacesUtils.annotations.getPageAnnotation(
-                                            uri, DESTINATION_FILE_URI_ANNO);
-    } catch (ex) {}
-
-    return metaData;
-  },
-
-  /**
-   * Given a data item for a session download, or a places node for a past
-   * download, updates the view as necessary.
-   *  1. If the given data is a places node, we check whether there are any
-   *     elements for the same download url. If there are, then we just reset
-   *     their places node. Otherwise we add a new download element.
-   *  2. If the given data is a data item, we first check if there's a history
-   *     download in the list that is not associated with a data item. If we
-   *     found one, we use it for the data item as well and reposition it
-   *     alongside the other session downloads. If we don't, then we go ahead
-   *     and create a new element for the download.
-   *
-   * @param [optional] sessionDownload
-   *        A Download object, or null for history downloads.
-   * @param [optional] aPlacesNode
-   *        The Places node for a history download, or null for session downloads.
-   * @param [optional] aNewest
-   *        @see onDownloadAdded. Ignored for history downloads.
-   * @param [optional] aDocumentFragment
-   *        To speed up the appending of multiple elements to the end of the
-   *        list which are coming in a single batch (i.e. invalidateContainer),
-   *        a document fragment may be passed to which the new elements would
-   *        be appended. It's the caller's job to ensure the fragment is merged
-   *        to the richlistbox at the end.
-   */
-  _addDownloadData(sessionDownload, aPlacesNode, aNewest = false,
-                               aDocumentFragment = null) {
-    let downloadURI = aPlacesNode ? aPlacesNode.uri
-                                  : sessionDownload.source.url;
-    let shellsForURI = this._downloadElementsShellsForURI.get(downloadURI);
-    if (!shellsForURI) {
-      shellsForURI = new Set();
-      this._downloadElementsShellsForURI.set(downloadURI, shellsForURI);
-    }
-
-    // When a session download is attached to a shell, we ensure not to keep
-    // stale metadata around for the corresponding history download. This
-    // prevents stale state from being used if the view is rebuilt.
-    //
-    // Note that we will eagerly load the data in the cache at this point, even
-    // if we have seen no history download. The case where no history download
-    // will appear at all is rare enough in normal usage, so we can apply this
-    // simpler solution rather than keeping a list of cache items to ignore.
-    if (sessionDownload) {
-      this._cachedPlacesMetaData.delete(sessionDownload.source.url);
-    }
-
-    let newOrUpdatedShell = null;
-
-    // Trivial: if there are no shells for this download URI, we always
-    // need to create one.
-    let shouldCreateShell = shellsForURI.size == 0;
-
-    // However, if we do have shells for this download uri, there are
-    // few options:
-    // 1) There's only one shell and it's for a history download (it has
-    //    no data item). In this case, we update this shell and move it
-    //    if necessary
-    // 2) There are multiple shells, indicating multiple downloads for
-    //    the same download uri are running. In this case we create
-    //    another shell for the download (so we have one shell for each data
-    //    item).
-    //
-    // Note: If a cancelled session download is already in the list, and the
-    // download is retried, onDownloadAdded is called again for the same
-    // data item. Thus, we also check that we make sure we don't have a view item
-    // already.
-    if (!shouldCreateShell &&
-        sessionDownload && !this._viewItemsForDownloads.has(sessionDownload)) {
-      // If there's a past-download-only shell for this download-uri with no
-      // associated data item, use it for the new data item. Otherwise, go ahead
-      // and create another shell.
-      shouldCreateShell = true;
-      for (let shell of shellsForURI) {
-        if (!shell.sessionDownload) {
-          shouldCreateShell = false;
-          shell.sessionDownload = sessionDownload;
-          newOrUpdatedShell = shell;
-          this._viewItemsForDownloads.set(sessionDownload, shell);
-          break;
-        }
-      }
-    }
-
-    if (shouldCreateShell) {
-      // If we are adding a new history download here, it means there is no
-      // associated session download, thus we must read the Places metadata,
-      // because it will not be obscured by the session download.
-      let historyDownload = null;
-      if (aPlacesNode) {
-        let metaData = this._cachedPlacesMetaData.get(aPlacesNode.uri) ||
-                       this._getPlacesMetaDataFor(aPlacesNode.uri);
-        historyDownload = new HistoryDownload(aPlacesNode);
-        historyDownload.updateFromMetaData(metaData);
-      }
-      let shell = new HistoryDownloadElementShell(sessionDownload,
-                                                  historyDownload);
-      shell.element._placesNode = aPlacesNode;
-      newOrUpdatedShell = shell;
-      shellsForURI.add(shell);
-      if (sessionDownload) {
-        this._viewItemsForDownloads.set(sessionDownload, shell);
-      }
-    }
-    else if (aPlacesNode) {
-      // We are updating information for a history download for which we have
-      // at least one download element shell already. There are two cases:
-      // 1) There are one or more download element shells for this source URI,
-      //    each with an associated session download. We update the Places node
-      //    because we may need it later, but we don't need to read the Places
-      //    metadata until the last session download is removed.
-      // 2) Occasionally, we may receive a duplicate notification for a history
-      //    download with no associated session download. We have exactly one
-      //    download element shell in this case, but the metdata cannot have
-      //    changed, just the reference to the Places node object is different.
-      // So, we update all the node references and keep the metadata intact.
-      for (let shell of shellsForURI) {
-        if (!shell.historyDownload) {
-          // Create the element to host the metadata when needed.
-          shell.historyDownload = new HistoryDownload(aPlacesNode);
-        }
-        shell.element._placesNode = aPlacesNode;
-      }
-    }
-
-    if (newOrUpdatedShell) {
-      if (aNewest) {
-        this._richlistbox.insertBefore(newOrUpdatedShell.element,
-                                       this._richlistbox.firstChild);
-        if (!this._lastSessionDownloadElement) {
-          this._lastSessionDownloadElement = newOrUpdatedShell.element;
-        }
-        // Some operations like retrying an history download move an element to
-        // the top of the richlistbox, along with other session downloads.
-        // More generally, if a new download is added, should be made visible.
-        this._richlistbox.ensureElementIsVisible(newOrUpdatedShell.element);
-      } else if (sessionDownload) {
-        let before = this._lastSessionDownloadElement ?
-          this._lastSessionDownloadElement.nextSibling : this._richlistbox.firstChild;
-        this._richlistbox.insertBefore(newOrUpdatedShell.element, before);
-        this._lastSessionDownloadElement = newOrUpdatedShell.element;
-      }
-      else {
-        let appendTo = aDocumentFragment || this._richlistbox;
-        appendTo.appendChild(newOrUpdatedShell.element);
-      }
-
-      if (this.searchTerm) {
-        newOrUpdatedShell.element.hidden =
-          !newOrUpdatedShell.element._shell.matchesSearchTerm(this.searchTerm);
-      }
-    }
-
-    // If aDocumentFragment is defined this is a batch change, so it's up to
-    // the caller to append the fragment and activate the visible shells.
-    if (!aDocumentFragment) {
-      this._ensureVisibleElementsAreActive();
-      goUpdateCommand("downloadsCmd_clearDownloads");
-    }
-  },
-
-  _removeElement: function DPV__removeElement(aElement) {
-    // If the element was selected exclusively, select its next
-    // sibling first, if not, try for previous sibling, if any.
-    if ((aElement.nextSibling || aElement.previousSibling) &&
-        this._richlistbox.selectedItems &&
-        this._richlistbox.selectedItems.length == 1 &&
-        this._richlistbox.selectedItems[0] == aElement) {
-      this._richlistbox.selectItem(aElement.nextSibling ||
-                                   aElement.previousSibling);
-    }
-
-    if (this._lastSessionDownloadElement == aElement)
-      this._lastSessionDownloadElement = aElement.previousSibling;
-
-    this._richlistbox.removeItemFromSelection(aElement);
-    this._richlistbox.removeChild(aElement);
-    this._ensureVisibleElementsAreActive();
-    goUpdateCommand("downloadsCmd_clearDownloads");
-  },
-
-  _removeHistoryDownloadFromView:
-  function DPV__removeHistoryDownloadFromView(aPlacesNode) {
-    let downloadURI = aPlacesNode.uri;
-    let shellsForURI = this._downloadElementsShellsForURI.get(downloadURI);
-    if (shellsForURI) {
-      for (let shell of shellsForURI) {
-        if (shell.sessionDownload) {
-          shell.historyDownload = null;
-        }
-        else {
-          this._removeElement(shell.element);
-          shellsForURI.delete(shell);
-          if (shellsForURI.size == 0)
-            this._downloadElementsShellsForURI.delete(downloadURI);
-        }
-      }
-    }
-  },
-
-  _removeSessionDownloadFromView(download) {
-    let shells = this._downloadElementsShellsForURI
-                     .get(download.source.url);
-    if (shells.size == 0)
-      throw new Error("Should have had at leaat one shell for this uri");
-
-    let shell = this._viewItemsForDownloads.get(download);
-    if (!shells.has(shell))
-      throw new Error("Missing download element shell in shells list for url");
-
-    // If there's more than one item for this download uri, we can let the
-    // view item for this this particular data item go away.
-    // If there's only one item for this download uri, we should only
-    // keep it if it is associated with a history download.
-    if (shells.size > 1 || !shell.historyDownload) {
-      this._removeElement(shell.element);
-      shells.delete(shell);
-      if (shells.size == 0)
-        this._downloadElementsShellsForURI.delete(download.source.url);
-    }
-    else {
-      // We have one download element shell containing both a session download
-      // and a history download, and we are now removing the session download.
-      // Previously, we did not use the Places metadata because it was obscured
-      // by the session download. Since this is no longer the case, we have to
-      // read the latest metadata before removing the session download.
-      let url = shell.historyDownload.source.url;
-      let metaData = this._getPlacesMetaDataFor(url);
-      shell.historyDownload.updateFromMetaData(metaData);
-      shell.sessionDownload = null;
-      // Move it below the session-download items;
-      if (this._lastSessionDownloadElement == shell.element) {
-        this._lastSessionDownloadElement = shell.element.previousSibling;
-      }
-      else {
-        let before = this._lastSessionDownloadElement ?
-          this._lastSessionDownloadElement.nextSibling : this._richlistbox.firstChild;
-        this._richlistbox.insertBefore(shell.element, before);
-      }
-    }
-  },
-
-  _ensureVisibleElementsAreActive:
-  function DPV__ensureVisibleElementsAreActive() {
-    if (!this.active || this._ensureVisibleTimer || !this._richlistbox.firstChild)
-      return;
-
-    this._ensureVisibleTimer = setTimeout(function() {
-      delete this._ensureVisibleTimer;
-      if (!this._richlistbox.firstChild)
-        return;
-
-      let rlbRect = this._richlistbox.getBoundingClientRect();
-      let winUtils = window.QueryInterface(Ci.nsIInterfaceRequestor)
-                           .getInterface(Ci.nsIDOMWindowUtils);
-      let nodes = winUtils.nodesFromRect(rlbRect.left, rlbRect.top,
-                                         0, rlbRect.width, rlbRect.height, 0,
-                                         true, false);
-      // nodesFromRect returns nodes in z-index order, and for the same z-index
-      // sorts them in inverted DOM order, thus starting from the one that would
-      // be on top.
-      let firstVisibleNode, lastVisibleNode;
-      for (let node of nodes) {
-        if (node.localName === "richlistitem" && node._shell) {
-          node._shell.ensureActive();
-          // The first visible node is the last match.
-          firstVisibleNode = node;
-          // While the last visible node is the first match.
-          if (!lastVisibleNode)
-            lastVisibleNode = node;
-        }
-      }
-
-      // Also activate the first invisible nodes in both boundaries (that is,
-      // above and below the visible area) to ensure proper keyboard navigation
-      // in both directions.
-      let nodeBelowVisibleArea = lastVisibleNode && lastVisibleNode.nextSibling;
-      if (nodeBelowVisibleArea && nodeBelowVisibleArea._shell)
-        nodeBelowVisibleArea._shell.ensureActive();
-
-      let nodeABoveVisibleArea =
-        firstVisibleNode && firstVisibleNode.previousSibling;
-      if (nodeABoveVisibleArea && nodeABoveVisibleArea._shell)
-        nodeABoveVisibleArea._shell.ensureActive();
-    }.bind(this), 10);
-  },
-
-  _place: "",
-  get place() this._place,
-  set place(val) {
-    // Don't reload everything if we don't have to.
-    if (this._place == val) {
-      // XXXmano: places.js relies on this behavior (see Bug 822203).
-      this.searchTerm = "";
-      return val;
-    }
-
-    this._place = val;
-
-    let history = PlacesUtils.history;
-    let queries = { }, options = { };
-    history.queryStringToQueries(val, queries, { }, options);
-    if (!queries.value.length)
-      queries.value = [history.getNewQuery()];
-
-    let result = history.executeQueries(queries.value, queries.value.length,
-                                        options.value);
-    result.addObserver(this, false);
-    return val;
-  },
-
-  _result: null,
-  get result() this._result,
-  set result(val) {
-    if (this._result == val)
-      return val;
-
-    if (this._result) {
-      this._result.removeObserver(this);
-      this._resultNode.containerOpen = false;
-    }
-
-    if (val) {
-      this._result = val;
-      this._resultNode = val.root;
-      this._resultNode.containerOpen = true;
-      this._ensureInitialSelection();
-    }
-    else {
-      delete this._resultNode;
-      delete this._result;
-    }
-
-    return val;
-  },
-
-  get selectedNodes() {
-    return [for (element of this._richlistbox.selectedItems)
-            if (element._placesNode)
-            element._placesNode];
-  },
-
-  get selectedNode() {
-    let selectedNodes = this.selectedNodes;
-    return selectedNodes.length == 1 ? selectedNodes[0] : null;
-  },
-
-  get hasSelection() this.selectedNodes.length > 0,
-
-  containerStateChanged:
-  function DPV_containerStateChanged(aNode, aOldState, aNewState) {
-    this.invalidateContainer(aNode)
-  },
-
-  invalidateContainer:
-  function DPV_invalidateContainer(aContainer) {
-    if (aContainer != this._resultNode)
-      throw new Error("Unexpected container node");
-    if (!aContainer.containerOpen)
-      throw new Error("Root container for the downloads query cannot be closed");
-
-    let suppressOnSelect = this._richlistbox.suppressOnSelect;
-    this._richlistbox.suppressOnSelect = true;
-    try {
-      // Remove the invalidated history downloads from the list and unset the
-      // places node for data downloads.
-      // Loop backwards since _removeHistoryDownloadFromView may removeChild().
-      for (let i = this._richlistbox.childNodes.length - 1; i >= 0; --i) {
-        let element = this._richlistbox.childNodes[i];
-        if (element._placesNode) {
-          this._removeHistoryDownloadFromView(element._placesNode);
-        }
-      }
-    }
-    finally {
-      this._richlistbox.suppressOnSelect = suppressOnSelect;
-    }
-
-    if (aContainer.childCount > 0) {
-      let elementsToAppendFragment = document.createDocumentFragment();
-      for (let i = 0; i < aContainer.childCount; i++) {
-        try {
-          this._addDownloadData(null, aContainer.getChild(i), false,
-                                elementsToAppendFragment);
-        }
-        catch(ex) {
-          Cu.reportError(ex);
-        }
-      }
-
-      // _addDownloadData may not add new elements if there were already
-      // data items in place.
-      if (elementsToAppendFragment.firstChild) {
-        this._appendDownloadsFragment(elementsToAppendFragment);
-        this._ensureVisibleElementsAreActive();
-      }
-    }
-
-    goUpdateDownloadCommands();
-  },
-
-  _appendDownloadsFragment: function DPV__appendDownloadsFragment(aDOMFragment) {
-    // Workaround multiple reflows hang by removing the richlistbox
-    // and adding it back when we're done.
-
-    // Hack for bug 836283: reset xbl fields to their old values after the
-    // binding is reattached to avoid breaking the selection state
-    let xblFields = new Map();
-    for (let [key, value] in Iterator(this._richlistbox)) {
-      xblFields.set(key, value);
-    }
-
-    let parentNode = this._richlistbox.parentNode;
-    let nextSibling = this._richlistbox.nextSibling;
-    parentNode.removeChild(this._richlistbox);
-    this._richlistbox.appendChild(aDOMFragment);
-    parentNode.insertBefore(this._richlistbox, nextSibling);
-
-    for (let [key, value] of xblFields) {
-      this._richlistbox[key] = value;
-    }
-  },
-
-  nodeInserted: function DPV_nodeInserted(aParent, aPlacesNode) {
-    this._addDownloadData(null, aPlacesNode);
-  },
-
-  nodeRemoved: function DPV_nodeRemoved(aParent, aPlacesNode, aOldIndex) {
-    this._removeHistoryDownloadFromView(aPlacesNode);
-  },
-
-  nodeAnnotationChanged() {},
-  nodeIconChanged() {},
-  nodeTitleChanged() {},
-  nodeKeywordChanged: function() {},
-  nodeDateAddedChanged: function() {},
-  nodeLastModifiedChanged: function() {},
-  nodeHistoryDetailsChanged: function() {},
-  nodeTagsChanged: function() {},
-  sortingChanged: function() {},
-  nodeMoved: function() {},
-  nodeURIChanged: function() {},
-  batching: function() {},
-
-  get controller() this._richlistbox.controller,
-
-  get searchTerm() this._searchTerm,
-  set searchTerm(aValue) {
-    if (this._searchTerm != aValue) {
-      for (let element of this._richlistbox.childNodes) {
-        element.hidden = !element._shell.matchesSearchTerm(aValue);
-      }
-      this._ensureVisibleElementsAreActive();
-    }
-    return this._searchTerm = aValue;
-  },
-
-  /**
-   * When the view loads, we want to select the first item.
-   * However, because session downloads, for which the data is loaded
-   * asynchronously, always come first in the list, and because the list
-   * may (or may not) already contain history downloads at that point, it
-   * turns out that by the time we can select the first item, the user may
-   * have already started using the view.
-   * To make things even more complicated, in other cases, the places data
-   * may be loaded after the session downloads data.  Thus we cannot rely on
-   * the order in which the data comes in.
-   * We work around this by attempting to select the first element twice,
-   * once after the places data is loaded and once when the session downloads
-   * data is done loading.  However, if the selection has changed in-between,
-   * we assume the user has already started using the view and give up.
-   */
-  _ensureInitialSelection: function DPV__ensureInitialSelection() {
-    // Either they're both null, or the selection has not changed in between.
-    if (this._richlistbox.selectedItem == this._initiallySelectedElement) {
-      let firstDownloadElement = this._richlistbox.firstChild;
-      if (firstDownloadElement != this._initiallySelectedElement) {
-        // We may be called before _ensureVisibleElementsAreActive,
-        // or before the download binding is attached. Therefore, ensure the
-        // first item is activated, and pass the item to the richlistbox
-        // setters only at a point we know for sure the binding is attached.
-        firstDownloadElement._shell.ensureActive();
-        Services.tm.mainThread.dispatch(function() {
-          this._richlistbox.selectedItem = firstDownloadElement;
-          this._richlistbox.currentItem = firstDownloadElement;
-          this._initiallySelectedElement = firstDownloadElement;
-        }.bind(this), Ci.nsIThread.DISPATCH_NORMAL);
-      }
-    }
-  },
-
-  onDataLoadStarting: function() { },
-  onDataLoadCompleted: function DPV_onDataLoadCompleted() {
-    this._ensureInitialSelection();
-  },
-
-  onDownloadAdded(download, newest) {
-    this._addDownloadData(download, null, newest);
-  },
-
-  onDownloadStateChanged(download) {
-    this._viewItemsForDownloads.get(download).onStateChanged();
-  },
-
-  onDownloadChanged(download) {
-    this._viewItemsForDownloads.get(download).onChanged();
-  },
-
-  onDownloadRemoved(download) {
-    this._removeSessionDownloadFromView(download);
-  },
-
-  supportsCommand: function DPV_supportsCommand(aCommand) {
-    if (DOWNLOAD_VIEW_SUPPORTED_COMMANDS.indexOf(aCommand) != -1) {
-      // The clear-downloads command may be performed by the toolbar-button,
-      // which can be focused on OS X.  Thus enable this command even if the
-      // richlistbox is not focused.
-      // For other commands, be prudent and disable them unless the richlistview
-      // is focused. It's important to make the decision here rather than in
-      // isCommandEnabled.  Otherwise our controller may "steal" commands from
-      // other controls in the window (see goUpdateCommand &
-      // getControllerForCommand).
-      if (document.activeElement == this._richlistbox ||
-          aCommand == "downloadsCmd_clearDownloads") {
-        return true;
-      }
-    }
-    return false;
-  },
-
-  isCommandEnabled: function DPV_isCommandEnabled(aCommand) {
-    switch (aCommand) {
-      case "cmd_copy":
-        return this._richlistbox.selectedItems.length > 0;
-      case "cmd_selectAll":
-        return true;
-      case "cmd_paste":
-        return this._canDownloadClipboardURL();
-      case "downloadsCmd_clearDownloads":
-        return this._canClearDownloads();
-      default:
-        return Array.every(this._richlistbox.selectedItems, function(element) {
-          return element._shell.isCommandEnabled(aCommand);
-        });
-    }
-  },
-
-  _canClearDownloads: function DPV__canClearDownloads() {
-    // Downloads can be cleared if there's at least one removable download in
-    // the list (either a history download or a completed session download).
-    // Because history downloads are always removable and are listed after the
-    // session downloads, check from bottom to top.
-    for (let elt = this._richlistbox.lastChild; elt; elt = elt.previousSibling) {
-      // Stopped, paused, and failed downloads with partial data are removed.
-      let download = elt._shell.download;
-      if (download.stopped && !(download.canceled && download.hasPartialData)) {
-        return true;
-      }
-    }
-    return false;
-  },
-
-  _copySelectedDownloadsToClipboard:
-  function DPV__copySelectedDownloadsToClipboard() {
-    let urls = [for (element of this._richlistbox.selectedItems)
-                element._shell.download.source.url];
-
-    Cc["@mozilla.org/widget/clipboardhelper;1"]
-      .getService(Ci.nsIClipboardHelper)
-      .copyString(urls.join("\n"), document);
-  },
-
-  _getURLFromClipboardData: function DPV__getURLFromClipboardData() {
-    let trans = Cc["@mozilla.org/widget/transferable;1"].
-                createInstance(Ci.nsITransferable);
-    trans.init(null);
-
-    let flavors = ["text/x-moz-url", "text/unicode"];
-    flavors.forEach(trans.addDataFlavor);
-
-    Services.clipboard.getData(trans, Services.clipboard.kGlobalClipboard);
-
-    // Getting the data or creating the nsIURI might fail.
-    try {
-      let data = {};
-      trans.getAnyTransferData({}, data, {});
-      let [url, name] = data.value.QueryInterface(Ci.nsISupportsString)
-                            .data.split("\n");
-      if (url)
-        return [NetUtil.newURI(url, null, null).spec, name];
-    }
-    catch(ex) { }
-
-    return ["", ""];
-  },
-
-  _canDownloadClipboardURL: function DPV__canDownloadClipboardURL() {
-    let [url, name] = this._getURLFromClipboardData();
-    return url != "";
-  },
-
-  _downloadURLFromClipboard: function DPV__downloadURLFromClipboard() {
-    let [url, name] = this._getURLFromClipboardData();
-    let browserWin = RecentWindow.getMostRecentBrowserWindow();
-    let initiatingDoc = browserWin ? browserWin.document : document;
-    DownloadURL(url, name, initiatingDoc);
-  },
-
-  doCommand: function DPV_doCommand(aCommand) {
-    // Commands may be invoked with keyboard shortcuts even if disabled.
-    if (!this.isCommandEnabled(aCommand)) {
-      return;
-    }
-    switch (aCommand) {
-      case "cmd_copy":
-        this._copySelectedDownloadsToClipboard();
-        break;
-      case "cmd_selectAll":
-        this._richlistbox.selectAll();
-        break;
-      case "cmd_paste":
-        this._downloadURLFromClipboard();
-        break;
-      case "downloadsCmd_clearDownloads":
-        this._downloadsData.removeFinished();
-        if (this.result) {
-          Cc["@mozilla.org/browser/download-history;1"]
-            .getService(Ci.nsIDownloadHistory)
-            .removeAllDownloads();
-        }
-        // There may be no selection or focus change as a result
-        // of these change, and we want the command updated immediately.
-        goUpdateCommand("downloadsCmd_clearDownloads");
-        break;
-      default: {
-        // Cloning the nodelist into an array to get a frozen list of selected items.
-        // Otherwise, the selectedItems nodelist is live and doCommand may alter the
-        // selection while we are trying to do one particular action, like removing
-        // items from history.
-        let selectedElements = [...this._richlistbox.selectedItems];
-        for (let element of selectedElements) {
-          element._shell.doCommand(aCommand);
-        }
-      }
-    }
-  },
-
-  onEvent: function() { },
-
-  onContextMenu: function DPV_onContextMenu(aEvent)
-  {
-    let element = this._richlistbox.selectedItem;
-    if (!element || !element._shell)
-      return false;
-
-    // Set the state attribute so that only the appropriate items are displayed.
-    let contextMenu = document.getElementById("downloadsContextMenu");
-    let download = element._shell.download;
-    contextMenu.setAttribute("state",
-                             DownloadsCommon.stateOfDownload(download));
-
-    if (!download.stopped) {
-      // The hasPartialData property of a download may change at any time after
-      // it has started, so ensure we update the related command now.
-      goUpdateCommand("downloadsCmd_pauseResume");
-    }
-    return true;
-  },
-
-  onKeyPress: function DPV_onKeyPress(aEvent) {
-    let selectedElements = this._richlistbox.selectedItems;
-    if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
-      // In the content tree, opening bookmarks by pressing return is only
-      // supported when a single item is selected. To be consistent, do the
-      // same here.
-      if (selectedElements.length == 1) {
-        let element = selectedElements[0];
-        if (element._shell)
-          element._shell.doDefaultCommand();
-      }
-    }
-    else if (aEvent.charCode == " ".charCodeAt(0)) {
-      // Pause/Resume every selected download
-      for (let element of selectedElements) {
-        if (element._shell.isCommandEnabled("downloadsCmd_pauseResume"))
-          element._shell.doCommand("downloadsCmd_pauseResume");
-      }
-    }
-  },
-
-  onDoubleClick: function DPV_onDoubleClick(aEvent) {
-    if (aEvent.button != 0)
-      return;
-
-    let selectedElements = this._richlistbox.selectedItems;
-    if (selectedElements.length != 1)
-      return;
-
-    let element = selectedElements[0];
-    if (element._shell)
-      element._shell.doDefaultCommand();
-  },
-
-  onScroll: function DPV_onScroll() {
-    this._ensureVisibleElementsAreActive();
-  },
-
-  onSelect: function DPV_onSelect() {
-    goUpdateDownloadCommands();
-
-    let selectedElements = this._richlistbox.selectedItems;
-    for (let elt of selectedElements) {
-      if (elt._shell)
-        elt._shell.onSelect();
-    }
-  },
-
-  onDragStart: function DPV_onDragStart(aEvent) {
-    // TODO Bug 831358: Support d&d for multiple selection.
-    // For now, we just drag the first element.
-    let selectedItem = this._richlistbox.selectedItem;
-    if (!selectedItem)
-      return;
-
-    let targetPath = selectedItem._shell.download.target.path;
-    if (!targetPath) {
-      return;
-    }
-
-    // We must check for existence synchronously because this is a DOM event.
-    let file = new FileUtils.File(targetPath);
-    if (!file.exists())
-      return;
-
-    let dt = aEvent.dataTransfer;
-    dt.mozSetDataAt("application/x-moz-file", file, 0);
-    let url = Services.io.newFileURI(file).spec;
-    dt.setData("text/uri-list", url);
-    dt.setData("text/plain", url);
-    dt.effectAllowed = "copyMove";
-    dt.addElement(selectedItem);
-  },
-
-  onDragOver: function DPV_onDragOver(aEvent) {
-    let types = aEvent.dataTransfer.types;
-    if (types.contains("text/uri-list") ||
-        types.contains("text/x-moz-url") ||
-        types.contains("text/plain")) {
-      aEvent.preventDefault();
-    }
-  },
-
-  onDrop: function DPV_onDrop(aEvent) {
-    let dt = aEvent.dataTransfer;
-    // If dragged item is from our source, do not try to
-    // redownload already downloaded file.
-    if (dt.mozGetDataAt("application/x-moz-file", 0))
-      return;
-
-    let links = Services.droppedLinkHandler.dropLinks(aEvent);
-    if (!links.length)
-      return;
-    let browserWin = RecentWindow.getMostRecentBrowserWindow();
-    let initiatingDoc = browserWin ? browserWin.document : document;
-    for (let link of links) {
-      if (link.url.startsWith("about:"))
-        continue;
-      DownloadURL(link.url, link.name, initiatingDoc);
-    }
-  }
-};
-
-for (let methodName of ["load", "applyFilter", "selectNode", "selectItems"]) {
-  DownloadsPlacesView.prototype[methodName] = function() {
-    throw new Error("|" + methodName + "| is not implemented by the downloads view.");
-  }
-}
-
-function goUpdateDownloadCommands() {
-  for (let command of DOWNLOAD_VIEW_SUPPORTED_COMMANDS) {
-    goUpdateCommand(command);
-  }
-}
diff --git a/components/downloads/content/allDownloadsViewOverlay.xul b/components/downloads/content/allDownloadsViewOverlay.xul
deleted file mode 100644
index 4e9bfd1..0000000
--- a/components/downloads/content/allDownloadsViewOverlay.xul
+++ /dev/null
@@ -1,119 +0,0 @@
-<?xml version="1.0"?>
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-<?xml-stylesheet href="chrome://browser/content/downloads/allDownloadsViewOverlay.css"?>
-<?xml-stylesheet href="chrome://browser/skin/downloads/allDownloadsViewOverlay.css"?>
-
-<!DOCTYPE overlay [
-<!ENTITY % downloadsDTD SYSTEM "chrome://browser/locale/downloads/downloads.dtd">
-%downloadsDTD;
-]>
-
-<!-- This overlay provides a downloads view that lists both session downloads,
-     using the DownloadsView API, and history downloads, using places queries.
-     The view also implements a command controller and a context menu for
-     managing the downloads list.  In order to use this view:
-     1. Apply this overlay to your window.
-     2. Insert in all the overlay entry-points, namely:
-        <richlistbox id="downloadsRichListBox"/>
-        <commandset id="downloadCommands"/>
-        <menupopup id="downloadsContextMenu"/>
-    3. Make sure your window has the editMenuOverlay overlay applied,
-       because the view implements cmd_copy and cmd_delete.
-    4. Make sure your window has the globalOverlay.js script loaded.
-    5. To initialize the view
-        let view = new DownloadsPlacesView(document.getElementById("downloadsRichListBox"));
-        // This is what the Places Library uses. It could be tweaked a bit as long as the
-        // transition-type is set correctly
-        view.place = "place:transition=7&sort=4";
--->
-<overlay id="downloadsViewOverlay"
-         xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
-
-  <script type="application/javascript"
-          src="chrome://browser/content/downloads/allDownloadsViewOverlay.js"/>
-  <script type="application/javascript"
-          src="chrome://global/content/contentAreaUtils.js"/>
-
-  <richlistbox flex="1"
-               seltype="multiple"
-               id="downloadsRichListBox" context="downloadsContextMenu"
-               onscroll="return this._placesView.onScroll();"
-               onkeypress="return this._placesView.onKeyPress(event);"
-               ondblclick="return this._placesView.onDoubleClick(event);"
-               oncontextmenu="return this._placesView.onContextMenu(event);"
-               ondragstart="this._placesView.onDragStart(event);"
-               ondragover="this._placesView.onDragOver(event);"
-               ondrop="this._placesView.onDrop(event);"
-               onfocus="goUpdateDownloadCommands();"
-               onselect="this._placesView.onSelect();"
-               onblur="goUpdateDownloadCommands();"/>
-
-  <commandset id="downloadCommands"
-              commandupdater="true"
-              events="focus,select,contextmenu"
-              oncommandupdate="goUpdateDownloadCommands();">
-    <command id="downloadsCmd_pauseResume"
-             oncommand="goDoCommand('downloadsCmd_pauseResume')"/>
-    <command id="downloadsCmd_cancel"
-             oncommand="goDoCommand('downloadsCmd_cancel')"/>
-    <command id="downloadsCmd_open"
-             oncommand="goDoCommand('downloadsCmd_open')"/>
-    <command id="downloadsCmd_show"
-             oncommand="goDoCommand('downloadsCmd_show')"/>
-    <command id="downloadsCmd_retry"
-             oncommand="goDoCommand('downloadsCmd_retry')"/>
-    <command id="downloadsCmd_openReferrer"
-             oncommand="goDoCommand('downloadsCmd_openReferrer')"/>
-    <command id="downloadsCmd_clearDownloads"
-             oncommand="goDoCommand('downloadsCmd_clearDownloads')"/>
-  </commandset>
-
-  <menupopup id="downloadsContextMenu" class="download-state">
-    <menuitem command="downloadsCmd_pauseResume"
-              class="downloadPauseMenuItem"
-              label="&cmd.pause.label;"
-              accesskey="&cmd.pause.accesskey;"/>
-    <menuitem command="downloadsCmd_pauseResume"
-              class="downloadResumeMenuItem"
-              label="&cmd.resume.label;"
-              accesskey="&cmd.resume.accesskey;"/>
-    <menuitem command="downloadsCmd_cancel"
-              class="downloadCancelMenuItem"
-              label="&cmd.cancel.label;"
-              accesskey="&cmd.cancel.accesskey;"/>
-    <menuitem command="cmd_delete"
-              class="downloadRemoveFromHistoryMenuItem"
-              label="&cmd.removeFromHistory.label;"
-              accesskey="&cmd.removeFromHistory.accesskey;"/>
-    <menuitem command="downloadsCmd_show"
-              class="downloadShowMenuItem"
-#ifdef XP_MACOSX
-              label="&cmd.showMac.label;"
-              accesskey="&cmd.showMac.accesskey;"
-#else
-              label="&cmd.show.label;"
-              accesskey="&cmd.show.accesskey;"
-#endif
-              />
-
-    <menuseparator class="downloadCommandsSeparator"/>
-
-    <menuitem command="downloadsCmd_openReferrer"
-              label="&cmd.goToDownloadPage.label;"
-              accesskey="&cmd.goToDownloadPage.accesskey;"/>
-    <menuitem command="cmd_copy"
-              label="&cmd.copyDownloadLink.label;"
-              accesskey="&cmd.copyDownloadLink.accesskey;"/>
-
-    <menuseparator/>
-
-    <menuitem command="downloadsCmd_clearDownloads"
-              label="&cmd.clearDownloads.label;"
-              accesskey="&cmd.clearDownloads.accesskey;"/>
-  </menupopup>
-</overlay>
diff --git a/components/downloads/content/contentAreaDownloadsView.css b/components/downloads/content/contentAreaDownloadsView.css
deleted file mode 100644
index abaae1f..0000000
--- a/components/downloads/content/contentAreaDownloadsView.css
+++ /dev/null
@@ -1,11 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#downloadsListEmptyDescription {
-  display: none;
-}
-
-#downloadsRichListBox:empty + #downloadsListEmptyDescription {
-  display: -moz-box;
-}
diff --git a/components/downloads/content/contentAreaDownloadsView.js b/components/downloads/content/contentAreaDownloadsView.js
deleted file mode 100644
index fbb18ab..0000000
--- a/components/downloads/content/contentAreaDownloadsView.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
-
-var ContentAreaDownloadsView = {
-  init: function CADV_init() {
-    let view = new DownloadsPlacesView(document.getElementById("downloadsRichListBox"));
-    // Do not display the Places downloads in private windows
-    if (!PrivateBrowsingUtils.isWindowPrivate(window)) {
-      view.place = "place:transition=7&sort=4";
-    }
-  }
-};
diff --git a/components/downloads/content/contentAreaDownloadsView.xul b/components/downloads/content/contentAreaDownloadsView.xul
deleted file mode 100644
index a91de1e..0000000
--- a/components/downloads/content/contentAreaDownloadsView.xul
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0"?>
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-<?xml-stylesheet href="chrome://global/skin/"?>
-<?xml-stylesheet href="chrome://browser/content/downloads/contentAreaDownloadsView.css"?>
-<?xml-stylesheet href="chrome://browser/skin/downloads/contentAreaDownloadsView.css"?>
-
-<?xul-overlay href="chrome://browser/content/downloads/allDownloadsViewOverlay.xul"?>
-
-<?xul-overlay href="chrome://global/content/editMenuOverlay.xul"?>
-
-<!DOCTYPE window [
-<!ENTITY % downloadsDTD SYSTEM "chrome://browser/locale/downloads/downloads.dtd">
-%downloadsDTD;
-]>
-
-<window id="contentAreaDownloadsView"
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        title="&downloads.title;"
-        onload="ContentAreaDownloadsView.init();">
-
-  <script type="application/javascript"
-          src="chrome://global/content/globalOverlay.js"/>
-  <script type="application/javascript"
-          src="chrome://browser/content/downloads/contentAreaDownloadsView.js"/>
-
-  <commandset id="editMenuCommands"/>
-
-  <keyset id="editMenuKeys">
-#ifdef XP_MACOSX
-    <key id="key_delete2" keycode="VK_BACK" command="cmd_delete"/>
-#endif
-  </keyset>
-
-  <stack flex="1">
-    <richlistbox id="downloadsRichListBox"/>
-    <description id="downloadsListEmptyDescription"
-                 value="&downloadsListEmpty.label;"/>
-  </stack>
-  <commandset id="downloadCommands"/>
-  <menupopup id="downloadsContextMenu"/>
-</window>
diff --git a/components/downloads/content/download.css b/components/downloads/content/download.css
deleted file mode 100644
index 7412fa7..0000000
--- a/components/downloads/content/download.css
+++ /dev/null
@@ -1,45 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-richlistitem.download button {
-  /* These buttons should never get focus, as that would "disable"
-     the downloads view controller (it's only used when the richlistbox
-     is focused). */
-  -moz-user-focus: none;
-}
-
-/*** Visibility of controls inside download items ***/
-
-.download-state:-moz-any(     [state="6"], /* Blocked (parental) */
-                              [state="8"], /* Blocked (dirty)    */
-                              [state="9"]) /* Blocked (policy)   */
-                                           > .downloadTypeIcon:not(.blockedIcon),
-
-.download-state:not(:-moz-any([state="6"], /* Blocked (parental) */
-                              [state="8"], /* Blocked (dirty)    */
-                              [state="9"]) /* Blocked (policy)   */)
-                                           > .downloadTypeIcon.blockedIcon,
-
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="5"], /* Starting (queued)  */
-                              [state="0"], /* Downloading        */
-                              [state="4"], /* Paused             */
-                              [state="7"]) /* Scanning           */)
-                                           > vbox > .downloadProgress,
-
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="5"], /* Starting (queued)  */
-                              [state="0"], /* Downloading        */
-                              [state="4"]) /* Paused             */)
-                                           > .downloadCancel,
-
-.download-state[state]:not(:-moz-any([state="2"], /* Failed             */
-                                     [state="3"]) /* Canceled           */)
-                                                  > .downloadRetry,
-
-.download-state:not(          [state="1"]  /* Finished           */)
-                                           > .downloadShow
-{
-  display: none;
-}
diff --git a/components/downloads/content/download.xml b/components/downloads/content/download.xml
deleted file mode 100644
index 542901b..0000000
--- a/components/downloads/content/download.xml
+++ /dev/null
@@ -1,188 +0,0 @@
-<?xml version="1.0"?>
-<!-- -*- Mode: HTML; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- -->
-<!-- vim: set ts=2 et sw=2 tw=80: -->
-
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this file,
-   - You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<!DOCTYPE bindings SYSTEM "chrome://browser/locale/downloads/downloads.dtd">
-
-<bindings id="downloadBindings"
-          xmlns="http://www.mozilla.org/xbl"
-          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-          xmlns:xbl="http://www.mozilla.org/xbl">
-
-  <binding id="download"
-           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
-    <content orient="horizontal"
-             align="center"
-             onclick="DownloadsView.onDownloadClick(event);">
-      <xul:image class="downloadTypeIcon"
-                 validate="always"
-                 xbl:inherits="src=image"/>
-      <xul:image class="downloadTypeIcon blockedIcon"/>
-      <xul:vbox pack="center"
-                flex="1"
-                class="downloadContainer"
-                style="width: &downloadDetails.width;">
-        <!-- We're letting localizers put a min-width in here primarily
-             because of the downloads summary at the bottom of the list of
-             download items. An element in the summary has the same min-width
-             on a description, and we don't want the panel to change size if the
-             summary isn't being displayed, so we ensure that items share the
-             same minimum width.
-             -->
-        <xul:description class="downloadDisplayName"
-                         crop="center"
-                         style="min-width: &downloadsSummary.minWidth2;"
-                         xbl:inherits="value=displayName,tooltiptext=displayName"/>
-        <xul:progressmeter anonid="progressmeter"
-                           class="downloadProgress"
-                           min="0"
-                           max="100"
-                           xbl:inherits="mode=progressmode,value=progress"/>
-        <xul:description class="downloadDetails"
-                         crop="end"
-                         xbl:inherits="value=status,tooltiptext=statusTip"/>
-      </xul:vbox>
-      <xul:stack>
-        <xul:button class="downloadButton downloadCancel"
-                    tooltiptext="&cmd.cancel.label;"
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_cancel');"/>
-        <xul:button class="downloadButton downloadRetry"
-                    tooltiptext="&cmd.retry.label;"
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_retry');"/>
-        <xul:button class="downloadButton downloadShow"
-#ifdef XP_MACOSX
-                    tooltiptext="&cmd.showMac.label;"
-#else
-                    tooltiptext="&cmd.show.label;"
-#endif
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_show');"/>
-      </xul:stack>
-    </content>
-  </binding>
-
-  <binding id="download-in-progress"
-           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
-    <content orient="horizontal"
-             align="center"
-             onclick="DownloadsView.onDownloadClick(event);">
-      <xul:image class="downloadTypeIcon"
-                 validate="always"
-                 xbl:inherits="src=image"/>
-      <xul:image class="downloadTypeIcon blockedIcon"/>
-      <xul:vbox pack="center"
-                flex="1"
-                class="downloadContainer"
-                style="width: &downloadDetails.width;">
-        <xul:description class="downloadDisplayName"
-                         crop="center"
-                         style="min-width: &downloadsSummary.minWidth2;"
-                         xbl:inherits="value=displayName,tooltiptext=extendedDisplayNameTip"/>
-        <xul:progressmeter anonid="progressmeter"
-                           class="downloadProgress"
-                           min="0"
-                           max="100"
-                           xbl:inherits="mode=progressmode,value=progress"/>
-        <xul:description class="downloadDetails"
-                         crop="end"
-                         xbl:inherits="value=status,tooltiptext=statusTip"/>
-      </xul:vbox>
-      <xul:stack>
-        <xul:button class="downloadButton downloadCancel"
-                    tooltiptext="&cmd.cancel.label;"
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_cancel');"/>
-        <xul:button class="downloadButton downloadRetry"
-                    tooltiptext="&cmd.retry.label;"
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_retry');"/>
-        <xul:button class="downloadButton downloadShow"
-                    tooltiptext="&cmd.show.label;"
-                    oncommand="DownloadsView.onDownloadCommand(event, 'downloadsCmd_show');"/>
-      </xul:stack>
-    </content>
-  </binding>
-
-  <binding id="download-full-ui"
-           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
-    <resources>
-      <stylesheet src="chrome://browser/content/downloads/download.css"/>
-    </resources>
-
-    <content orient="horizontal" align="center">
-      <xul:image class="downloadTypeIcon"
-                 validate="always"
-                 xbl:inherits="src=image"/>
-      <xul:image class="downloadTypeIcon blockedIcon"/>
-      <xul:vbox pack="center" flex="1">
-        <xul:description class="downloadDisplayName"
-                         crop="center"
-                         xbl:inherits="value=displayName,tooltiptext=displayName"/>
-        <xul:progressmeter anonid="progressmeter"
-                           class="downloadProgress"
-                           min="0"
-                           max="100"
-                           xbl:inherits="mode=progressmode,value=progress"/>
-        <xul:description class="downloadDetails"
-                         style="width: &downloadDetails.width;"
-                         crop="end"
-                         xbl:inherits="value=status,tooltiptext=statusTip"/>
-      </xul:vbox>
-
-      <xul:button class="downloadButton downloadCancel"
-                  tooltiptext="&cmd.cancel.label;"
-                  oncommand="goDoCommand('downloadsCmd_cancel')"/>
-      <xul:button class="downloadButton downloadRetry"
-                  tooltiptext="&cmd.retry.label;"
-                  oncommand="goDoCommand('downloadsCmd_retry')"/>
-      <xul:button class="downloadButton downloadShow"
-#ifdef XP_MACOSX
-                  tooltiptext="&cmd.showMac.label;"
-#else
-                  tooltiptext="&cmd.show.label;"
-#endif
-                  oncommand="goDoCommand('downloadsCmd_show')"/>
-
-    </content>
-  </binding>
-
-  <binding id="download-in-progress-full-ui"
-           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
-    <resources>
-      <stylesheet src="chrome://browser/content/downloads/download.css"/>
-    </resources>
-
-    <content orient="horizontal" align="center">
-      <xul:image class="downloadTypeIcon"
-                 validate="always"
-                 xbl:inherits="src=image"/>
-      <xul:image class="downloadTypeIcon blockedIcon"/>
-      <xul:vbox pack="center" flex="1">
-        <xul:description class="downloadDisplayName"
-                         crop="end"
-                         xbl:inherits="value=extendedDisplayName,tooltiptext=extendedDisplayNameTip"/>
-        <xul:progressmeter anonid="progressmeter"
-                           class="downloadProgress"
-                           min="0"
-                           max="100"
-                           xbl:inherits="mode=progressmode,value=progress"/>
-        <xul:description class="downloadDetails"
-                         style="width: &downloadDetails.width;"
-                         crop="end"
-                         xbl:inherits="value=status,tooltiptext=statusTip"/>
-      </xul:vbox>
-
-      <xul:button class="downloadButton downloadCancel"
-                  tooltiptext="&cmd.cancel.label;"
-                  oncommand="goDoCommand('downloadsCmd_cancel')"/>
-      <xul:button class="downloadButton downloadRetry"
-                  tooltiptext="&cmd.retry.label;"
-                  oncommand="goDoCommand('downloadsCmd_retry')"/>
-      <xul:button class="downloadButton downloadShow"
-                  tooltiptext="&cmd.show.label;"
-                  oncommand="goDoCommand('downloadsCmd_show')"/>
-
-    </content>
-  </binding>
-</bindings>
diff --git a/components/downloads/content/downloads.css b/components/downloads/content/downloads.css
deleted file mode 100644
index 825db68..0000000
--- a/components/downloads/content/downloads.css
+++ /dev/null
@@ -1,132 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*** Download items ***/
-
-richlistitem[type="download"] {
-  -moz-binding: url('chrome://browser/content/downloads/download.xml#download');
-}
-
-richlistitem[type="download"]:-moz-any([state="-1"],/* Starting (initial) */
-                                       [state="0"], /* Downloading        */
-                                       [state="4"], /* Paused             */
-                                       [state="5"], /* Starting (queued)  */
-                                       [state="7"]) /* Scanning           */
-{
-  -moz-binding: url('chrome://browser/content/downloads/download.xml#download-in-progress');
-}
-
-richlistitem[type="download"]:not([selected]) button {
-  /* Only focus buttons in the selected item. */
-  -moz-user-focus: none;
-}
-
-/*** Visibility of controls inside download items ***/
-
-.download-state:-moz-any(     [state="6"], /* Blocked (parental) */
-                              [state="8"], /* Blocked (dirty)    */
-                              [state="9"]) /* Blocked (policy)   */
-                                           .downloadTypeIcon:not(.blockedIcon),
-
-.download-state:not(:-moz-any([state="6"], /* Blocked (parental) */
-                              [state="8"], /* Blocked (dirty)    */
-                              [state="9"]) /* Blocked (policy)   */)
-                                           .downloadTypeIcon.blockedIcon,
-
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="0"], /* Downloading        */
-                              [state="4"], /* Paused             */
-                              [state="5"], /* Starting (queued)  */
-                              [state="7"]) /* Scanning           */)
-                                           .downloadProgress,
-
-.download-state:not(          [state="0"]  /* Downloading        */)
-                                           .downloadPauseMenuItem,
-
-.download-state:not(          [state="4"]  /* Paused             */)
-                                           .downloadResumeMenuItem,
-
-.download-state:not(:-moz-any([state="2"], /* Failed             */
-                              [state="4"]) /* Paused             */)
-                                           .downloadCancelMenuItem,
-
-.download-state:not(:-moz-any([state="1"], /* Finished           */
-                              [state="2"], /* Failed             */
-                              [state="3"], /* Canceled           */
-                              [state="6"], /* Blocked (parental) */
-                              [state="8"], /* Blocked (dirty)    */
-                              [state="9"]) /* Blocked (policy)   */)
-                                           .downloadRemoveFromHistoryMenuItem,
-
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="0"], /* Downloading        */
-                              [state="1"], /* Finished           */
-                              [state="4"], /* Paused             */
-                              [state="5"]) /* Starting (queued)  */)
-                                           .downloadShowMenuItem,
-
-.download-state[state="7"] /* Scanning */  .downloadCommandsSeparator
-
-{
-  display: none;
-}
-
-/*** Visibility of download buttons and indicator controls. ***/
-
-.download-state:not(:-moz-any([state="-1"],/* Starting (initial) */
-                              [state="0"], /* Downloading        */
-                              [state="4"], /* Paused             */
-                              [state="5"]) /* Starting (queued)  */)
-                                           .downloadCancel,
-
-.download-state:not(:-moz-any([state="2"], /* Failed             */
-                              [state="3"]) /* Canceled           */)
-                                           .downloadRetry,
-
-.download-state:not(          [state="1"]  /* Finished           */)
-                                           .downloadShow,
-
-#downloads-indicator:-moz-any([progress],
-                              [counter],
-                              [paused])    #downloads-indicator-icon,
-
-#downloads-indicator:not(:-moz-any([progress],
-                                   [counter],
-                                   [paused]))
-                                           #downloads-indicator-progress-area
-
-{
-  visibility: hidden;
-}
-
-.download-state[state="1"]:not([exists]) .downloadShow
-{
-  display: none;
-}
-
-#downloadsSummary:not([inprogress]) > vbox > #downloadsSummaryProgress,
-#downloadsSummary:not([inprogress]) > vbox > #downloadsSummaryDetails,
-#downloadsFooter[showingsummary] > #downloadsHistory,
-#downloadsFooter:not([showingsummary]) > #downloadsSummary
-{
-  display: none;
-}
-
-/* Hacks for toolbar full and text modes, until bug 573329 removes them */
-
-toolbar[mode="text"] > #downloads-indicator {
-  display: -moz-box;
-  -moz-box-orient: vertical;
-  -moz-box-pack: center;
-}
-
-toolbar[mode="text"] > #downloads-indicator > .toolbarbutton-text {
-  -moz-box-ordinal-group: 1;
-}
-
-toolbar[mode="text"] > #downloads-indicator > .toolbarbutton-icon {
-  display: -moz-box;
-  -moz-box-ordinal-group: 2;
-  visibility: collapse;
-}
diff --git a/components/downloads/content/downloads.js b/components/downloads/content/downloads.js
deleted file mode 100644
index ee1c690..0000000
--- a/components/downloads/content/downloads.js
+++ /dev/null
@@ -1,1614 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsCommon",
-                                  "resource:///modules/DownloadsCommon.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DownloadsViewUI",
-                                  "resource:///modules/DownloadsViewUI.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
-                                  "resource://gre/modules/FileUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
-                                  "resource://gre/modules/Services.jsm");
-
-/**
- * Handles the Downloads panel user interface for each browser window.
- *
- * This file includes the following constructors and global objects:
- *
- * DownloadsPanel
- * Main entry point for the downloads panel interface.
- *
- * DownloadsOverlayLoader
- * Allows loading the downloads panel and the status indicator interfaces on
- * demand, to improve startup performance.
- *
- * DownloadsView
- * Builds and updates the downloads list widget, responding to changes in the
- * download state and real-time data.  In addition, handles part of the user
- * interaction events raised by the downloads list widget.
- *
- * DownloadsViewItem
- * Builds and updates a single item in the downloads list widget, responding to
- * changes in the download state and real-time data.
- *
- * DownloadsViewController
- * Handles part of the user interaction events raised by the downloads list
- * widget, in particular the "commands" that apply to multiple items, and
- * dispatches the commands that apply to individual items.
- *
- * DownloadsViewItemController
- * Handles all the user interaction events, in particular the "commands",
- * related to a single item in the downloads list widgets.
- */
-
-/**
- * A few words on focus and focusrings
- *
- * We do quite a few hacks in the Downloads Panel for focusrings. In fact, we
- * basically suppress most if not all XUL-level focusrings, and style/draw
- * them ourselves (using :focus instead of -moz-focusring). There are a few
- * reasons for this:
- *
- * 1) Richlists on OSX don't have focusrings; instead, they are shown as
- *    selected. This makes for some ambiguity when we have a focused/selected
- *    item in the list, and the mouse is hovering a completed download (which
- *    highlights).
- * 2) Windows doesn't show focusrings until after the first time that tab is
- *    pressed (and by then you're focusing the second item in the panel).
- * 3) Richlistbox sets -moz-focusring even when we select it with a mouse.
- *
- * In general, the desired behaviour is to focus the first item after pressing
- * tab/down, and show that focus with a ring. Then, if the mouse moves over
- * the panel, to hide that focus ring; essentially resetting us to the state
- * before pressing the key.
- *
- * We end up capturing the tab/down key events, and preventing their default
- * behaviour. We then set a "keyfocus" attribute on the panel, which allows
- * us to draw a ring around the currently focused element. If the panel is
- * closed or the mouse moves over the panel, we remove the attribute.
- */
-
-"use strict";
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsPanel
-
-/**
- * Main entry point for the downloads panel interface.
- */
-const DownloadsPanel = {
-  //////////////////////////////////////////////////////////////////////////////
-  //// Initialization and termination
-
-  /**
-   * Internal state of the downloads panel, based on one of the kState
-   * constants.  This is not the same state as the XUL panel element.
-   */
-  _state: 0,
-
-  /** The panel is not linked to downloads data yet. */
-  get kStateUninitialized() 0,
-  /** This object is linked to data, but the panel is invisible. */
-  get kStateHidden() 1,
-  /** The panel will be shown as soon as possible. */
-  get kStateWaitingData() 2,
-  /** The panel is almost shown - we're just waiting to get a handle on the
-      anchor. */
-  get kStateWaitingAnchor() 3,
-  /** The panel is open. */
-  get kStateShown() 4,
-
-  /**
-   * Location of the panel overlay.
-   */
-  get kDownloadsOverlay()
-      "chrome://browser/content/downloads/downloadsOverlay.xul",
-
-  /**
-   * Starts loading the download data in background, without opening the panel.
-   * Use showPanel instead to load the data and open the panel at the same time.
-   *
-   * @param aCallback
-   *        Called when initialization is complete.
-   */
-  initialize: function DP_initialize(aCallback)
-  {
-    DownloadsCommon.log("Attempting to initialize DownloadsPanel for a window.");
-    if (this._state != this.kStateUninitialized) {
-      DownloadsCommon.log("DownloadsPanel is already initialized.");
-      DownloadsOverlayLoader.ensureOverlayLoaded(this.kDownloadsOverlay,
-                                                 aCallback);
-      return;
-    }
-    this._state = this.kStateHidden;
-
-    window.addEventListener("unload", this.onWindowUnload, false);
-
-    // Ensure that the Download Manager service is running.  This resumes
-    // active downloads if required.  If there are downloads to be shown in the
-    // panel, starting the service will make us load their data asynchronously.
-    DownloadsCommon.initializeAllDataLinks();
-    
-
-    // Now that data loading has eventually started, load the required XUL
-    // elements and initialize our views.
-    DownloadsCommon.log("Ensuring DownloadsPanel overlay loaded.");
-    DownloadsOverlayLoader.ensureOverlayLoaded(this.kDownloadsOverlay,
-                                               function DP_I_callback() {
-      DownloadsViewController.initialize();
-      DownloadsCommon.log("Attaching DownloadsView...");
-      DownloadsCommon.getData(window).addView(DownloadsView);
-      DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
-                     .addView(DownloadsSummary);
-      DownloadsCommon.log("DownloadsView attached - the panel for this window",
-                          "should now see download items come in.");
-      DownloadsPanel._attachEventListeners();
-      DownloadsCommon.log("DownloadsPanel initialized.");
-      aCallback();
-    });
-  },
-
-  /**
-   * Closes the downloads panel and frees the internal resources related to the
-   * downloads.  The downloads panel can be reopened later, even after this
-   * function has been called.
-   */
-  terminate: function DP_terminate()
-  {
-    DownloadsCommon.log("Attempting to terminate DownloadsPanel for a window.");
-    if (this._state == this.kStateUninitialized) {
-      DownloadsCommon.log("DownloadsPanel was never initialized. Nothing to do.");
-      return;
-    }
-
-    window.removeEventListener("unload", this.onWindowUnload, false);
-
-    // Ensure that the panel is closed before shutting down.
-    this.hidePanel();
-
-    DownloadsViewController.terminate();
-    DownloadsCommon.getData(window).removeView(DownloadsView);
-    DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
-                   .removeView(DownloadsSummary);
-    this._unattachEventListeners();
-
-    this._state = this.kStateUninitialized;
-
-    DownloadsSummary.active = false;
-    DownloadsCommon.log("DownloadsPanel terminated.");
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Panel interface
-
-  /**
-   * Main panel element in the browser window, or null if the panel overlay
-   * hasn't been loaded yet.
-   */
-  get panel()
-  {
-    // If the downloads panel overlay hasn't loaded yet, just return null
-    // without resetting this.panel.
-    let downloadsPanel = document.getElementById("downloadsPanel");
-    if (!downloadsPanel)
-      return null;
-
-    delete this.panel;
-    return this.panel = downloadsPanel;
-  },
-
-  /**
-   * Starts opening the downloads panel interface, anchored to the downloads
-   * button of the browser window.  The list of downloads to display is
-   * initialized the first time this method is called, and the panel is shown
-   * only when data is ready.
-   */
-  showPanel: function DP_showPanel()
-  {
-    DownloadsCommon.log("Opening the downloads panel.");
-
-    if (this.isPanelShowing) {
-      DownloadsCommon.log("Panel is already showing - focusing instead.");
-      this._focusPanel();
-      return;
-    }
-
-    this.initialize(function DP_SP_callback() {
-      // Delay displaying the panel because this function will sometimes be
-      // called while another window is closing (like the window for selecting
-      // whether to save or open the file), and that would cause the panel to
-      // close immediately.
-      setTimeout(function () DownloadsPanel._openPopupIfDataReady(), 0);
-    }.bind(this));
-
-    DownloadsCommon.log("Waiting for the downloads panel to appear.");
-    this._state = this.kStateWaitingData;
-  },
-
-  /**
-   * Hides the downloads panel, if visible, but keeps the internal state so that
-   * the panel can be reopened quickly if required.
-   */
-  hidePanel: function DP_hidePanel()
-  {
-    DownloadsCommon.log("Closing the downloads panel.");
-
-    if (!this.isPanelShowing) {
-      DownloadsCommon.log("Downloads panel is not showing - nothing to do.");
-      return;
-    }
-
-    this.panel.hidePopup();
-
-    // Ensure that we allow the panel to be reopened.  Note that, if the popup
-    // was open, then the onPopupHidden event handler has already updated the
-    // current state, otherwise we must update the state ourselves.
-    this._state = this.kStateHidden;
-    DownloadsCommon.log("Downloads panel is now closed.");
-  },
-
-  /**
-   * Indicates whether the panel is shown or will be shown.
-   */
-  get isPanelShowing()
-  {
-    return this._state == this.kStateWaitingData ||
-           this._state == this.kStateWaitingAnchor ||
-           this._state == this.kStateShown;
-  },
-
-  /**
-   * Returns whether the user has started keyboard navigation.
-   */
-  get keyFocusing()
-  {
-    return this.panel.hasAttribute("keyfocus");
-  },
-
-  /**
-   * Set to true if the user has started keyboard navigation, and we should be
-   * showing focusrings in the panel. Also adds a mousemove event handler to
-   * the panel which disables keyFocusing.
-   */
-  set keyFocusing(aValue)
-  {
-    if (aValue) {
-      this.panel.setAttribute("keyfocus", "true");
-      this.panel.addEventListener("mousemove", this);
-    } else {
-      this.panel.removeAttribute("keyfocus");
-      this.panel.removeEventListener("mousemove", this);
-    }
-    return aValue;
-  },
-
-  /**
-   * Handles the mousemove event for the panel, which disables focusring
-   * visualization.
-   */
-  handleEvent: function DP_handleEvent(aEvent)
-  {
-    if (aEvent.type == "mousemove") {
-      this.keyFocusing = false;
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsView
-
-  /**
-   * Called after data loading finished.
-   */
-  onViewLoadCompleted: function DP_onViewLoadCompleted()
-  {
-    this._openPopupIfDataReady();
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// User interface event functions
-
-  onWindowUnload: function DP_onWindowUnload()
-  {
-    // This function is registered as an event listener, we can't use "this".
-    DownloadsPanel.terminate();
-  },
-
-  onPopupShown: function DP_onPopupShown(aEvent)
-  {
-    // Ignore events raised by nested popups.
-    if (aEvent.target != aEvent.currentTarget) {
-      return;
-    }
-
-    DownloadsCommon.log("Downloads panel has shown.");
-    this._state = this.kStateShown;
-
-    // Since at most one popup is open at any given time, we can set globally.
-    DownloadsCommon.getIndicatorData(window).attentionSuppressed = true;
-
-    // Ensure that the first item is selected when the panel is focused.
-    if (DownloadsView.richListBox.itemCount > 0 &&
-        DownloadsView.richListBox.selectedIndex == -1) {
-      DownloadsView.richListBox.selectedIndex = 0;
-    }
-
-    this._focusPanel();
-  },
-
-  onPopupHidden: function DP_onPopupHidden(aEvent)
-  {
-    // Ignore events raised by nested popups.
-    if (aEvent.target != aEvent.currentTarget) {
-      return;
-    }
-
-    DownloadsCommon.log("Downloads panel has hidden.");
-
-    // Removes the keyfocus attribute so that we stop handling keyboard
-    // navigation.
-    this.keyFocusing = false;
-
-    // Since at most one popup is open at any given time, we can set globally.
-    DownloadsCommon.getIndicatorData(window).attentionSuppressed = false;
-
-    // Allow the anchor to be hidden.
-    DownloadsButton.releaseAnchor();
-
-    // Allow the panel to be reopened.
-    this._state = this.kStateHidden;
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Related operations
-
-  /**
-   * Shows or focuses the user interface dedicated to downloads history.
-   */
-  showDownloadsHistory: function DP_showDownloadsHistory()
-  {
-    DownloadsCommon.log("Showing download history.");
-    // Hide the panel before showing another window, otherwise focus will return
-    // to the browser window when the panel closes automatically.
-    this.hidePanel();
-
-    BrowserDownloadsUI();
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Internal functions
-
-  /**
-   * Attach event listeners to a panel element. These listeners should be
-   * removed in _unattachEventListeners. This is called automatically after the
-   * panel has successfully loaded.
-   */
-  _attachEventListeners: function DP__attachEventListeners()
-  {
-    // Handle keydown to support accel-V.
-    this.panel.addEventListener("keydown", this._onKeyDown.bind(this), false);
-    // Handle keypress to be able to preventDefault() events before they reach
-    // the richlistbox, for keyboard navigation.
-    this.panel.addEventListener("keypress", this._onKeyPress.bind(this), false);
-  },
-
-  /**
-   * Unattach event listeners that were added in _attachEventListeners. This
-   * is called automatically on panel termination.
-   */
-  _unattachEventListeners: function DP__unattachEventListeners()
-  {
-    this.panel.removeEventListener("keydown", this._onKeyDown.bind(this),
-                                   false);
-    this.panel.removeEventListener("keypress", this._onKeyPress.bind(this),
-                                   false);
-  },
-
-  _onKeyPress: function DP__onKeyPress(aEvent)
-  {
-    // Handle unmodified keys only.
-    if (aEvent.altKey || aEvent.ctrlKey || aEvent.shiftKey || aEvent.metaKey) {
-      return;
-    }
-
-    let richListBox = DownloadsView.richListBox;
-
-    // If the user has pressed the tab, up, or down cursor key, start keyboard
-    // navigation, thus enabling focusrings in the panel.  Keyboard navigation
-    // is automatically disabled if the user moves the mouse on the panel, or
-    // if the panel is closed.
-    if ((aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_TAB ||
-        aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_UP ||
-        aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_DOWN) &&
-        !this.keyFocusing) {
-      this.keyFocusing = true;
-      // Ensure there's a selection, we will show the focus ring around it and
-      // prevent the richlistbox from changing the selection.
-      if (DownloadsView.richListBox.selectedIndex == -1)
-        DownloadsView.richListBox.selectedIndex = 0;
-      aEvent.preventDefault();
-      return;
-    }
-
-    if (aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_DOWN) {
-      // If the last element in the list is selected, or the footer is already
-      // focused, focus the footer.
-      if (richListBox.selectedItem === richListBox.lastChild ||
-          document.activeElement.parentNode.id === "downloadsFooter") {
-        DownloadsFooter.focus();
-        aEvent.preventDefault();
-        return;
-      }
-    }
-
-    // Pass keypress events to the richlistbox view when it's focused.
-    if (document.activeElement === richListBox) {
-      DownloadsView.onDownloadKeyPress(aEvent);
-    }
-  },
-
-  /**
-   * Keydown listener that listens for the keys to start key focusing, as well
-   * as the the accel-V "paste" event, which initiates a file download if the
-   * pasted item can be resolved to a URI.
-   */
-  _onKeyDown: function DP__onKeyDown(aEvent)
-  {
-    // If the footer is focused and the downloads list has at least 1 element
-    // in it, focus the last element in the list when going up.
-    if (aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_UP &&
-        document.activeElement.parentNode.id === "downloadsFooter" &&
-        DownloadsView.richListBox.firstChild) {
-      DownloadsView.richListBox.focus();
-      DownloadsView.richListBox.selectedItem = DownloadsView.richListBox.lastChild;
-      aEvent.preventDefault();
-      return;
-    }
-
-    let pasting = aEvent.keyCode == Ci.nsIDOMKeyEvent.DOM_VK_V &&
-#ifdef XP_MACOSX
-                  aEvent.metaKey;
-#else
-                  aEvent.ctrlKey;
-#endif
-
-    if (!pasting) {
-      return;
-    }
-
-    DownloadsCommon.log("Received a paste event.");
-
-    let trans = Cc["@mozilla.org/widget/transferable;1"]
-                  .createInstance(Ci.nsITransferable);
-    trans.init(null);
-    let flavors = ["text/x-moz-url", "text/unicode"];
-    flavors.forEach(trans.addDataFlavor);
-    Services.clipboard.getData(trans, Services.clipboard.kGlobalClipboard);
-    // Getting the data or creating the nsIURI might fail
-    try {
-      let data = {};
-      trans.getAnyTransferData({}, data, {});
-      let [url, name] = data.value
-                            .QueryInterface(Ci.nsISupportsString)
-                            .data
-                            .split("\n");
-      if (!url) {
-        return;
-      }
-
-      let uri = NetUtil.newURI(url);
-      DownloadsCommon.log("Pasted URL seems valid. Starting download.");
-      DownloadURL(uri.spec, name, document);
-    } catch (ex) {}
-  },
-
-  /**
-   * Move focus to the main element in the downloads panel, unless another
-   * element in the panel is already focused.
-   */
-  _focusPanel: function DP_focusPanel()
-  {
-    // We may be invoked while the panel is still waiting to be shown.
-    if (this._state != this.kStateShown) {
-      return;
-    }
-
-    let element = document.commandDispatcher.focusedElement;
-    while (element && element != this.panel) {
-      element = element.parentNode;
-    }
-    if (!element) {
-      if (DownloadsView.richListBox.itemCount > 0) {
-        DownloadsView.richListBox.focus();
-      } else {
-        DownloadsFooter.focus();
-      }
-    }
-  },
-
-  /**
-   * Opens the downloads panel when data is ready to be displayed.
-   */
-  _openPopupIfDataReady: function DP_openPopupIfDataReady()
-  {
-    // We don't want to open the popup if we already displayed it, or if we are
-    // still loading data.
-    if (this._state != this.kStateWaitingData || DownloadsView.loading) {
-      return;
-    }
-
-    this._state = this.kStateWaitingAnchor;
-
-    // Ensure the anchor is visible.  If that is not possible, show the panel
-    // anchored to the top area of the window, near the default anchor position.
-    DownloadsButton.getAnchor(function DP_OPIDR_callback(aAnchor) {
-      // If somehow we've switched states already (by getting a panel hiding
-      // event before an overlay is loaded, for example), bail out.
-      if (this._state != this.kStateWaitingAnchor)
-        return;
-
-      // At this point, if the window is minimized, opening the panel could fail
-      // without any notification, and there would be no way to either open or
-      // close the panel any more.  To prevent this, check if the window is
-      // minimized and in that case force the panel to the closed state.
-      if (window.windowState == Ci.nsIDOMChromeWindow.STATE_MINIMIZED) {
-        DownloadsButton.releaseAnchor();
-        this._state = this.kStateHidden;
-        return;
-      }
-
-      // When the panel is opened, we check if the target files of visible items
-      // still exist, and update the allowed items interactions accordingly.  We
-      // do these checks on a background thread, and don't prevent the panel to
-      // be displayed while these checks are being performed.
-      for (let viewItem of DownloadsView._visibleViewItems.values()) {
-        viewItem.download.refresh().catch(Cu.reportError);
-      }
-
-      if (aAnchor) {
-        DownloadsCommon.log("Opening downloads panel popup.");
-        this.panel.openPopup(aAnchor, "bottomcenter topright", 0, 0, false,
-                             null);
-      } else {
-        DownloadsCommon.error("We can't find the anchor! Failure case - opening",
-                              "downloads panel on TabsToolbar. We should never",
-                              "get here!");
-        Components.utils.reportError(
-          "Downloads button cannot be found");
-      }
-    }.bind(this));
-  }
-};
-
-XPCOMUtils.defineConstant(this, "DownloadsPanel", DownloadsPanel);
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsOverlayLoader
-
-/**
- * Allows loading the downloads panel and the status indicator interfaces on
- * demand, to improve startup performance.
- */
-const DownloadsOverlayLoader = {
-  /**
-   * We cannot load two overlays at the same time, thus we use a queue of
-   * pending load requests.
-   */
-  _loadRequests: [],
-
-  /**
-   * True while we are waiting for an overlay to be loaded.
-   */
-  _overlayLoading: false,
-
-  /**
-   * This object has a key for each overlay URI that is already loaded.
-   */
-  _loadedOverlays: {},
-
-  /**
-   * Loads the specified overlay and invokes the given callback when finished.
-   *
-   * @param aOverlay
-   *        String containing the URI of the overlay to load in the current
-   *        window.  If this overlay has already been loaded using this
-   *        function, then the overlay is not loaded again.
-   * @param aCallback
-   *        Invoked when loading is completed.  If the overlay is already
-   *        loaded, the function is called immediately.
-   */
-  ensureOverlayLoaded: function DOL_ensureOverlayLoaded(aOverlay, aCallback)
-  {
-    // The overlay is already loaded, invoke the callback immediately.
-    if (aOverlay in this._loadedOverlays) {
-      aCallback();
-      return;
-    }
-
-    // The callback will be invoked when loading is finished.
-    this._loadRequests.push({ overlay: aOverlay, callback: aCallback });
-    if (this._overlayLoading) {
-      return;
-    }
-
-    function DOL_EOL_loadCallback() {
-      this._overlayLoading = false;
-      this._loadedOverlays[aOverlay] = true;
-
-      // Loading the overlay causes all the persisted XUL attributes to be
-      // reapplied, including "iconsize" on the toolbars.  Until bug 640158 is
-      // fixed, we must recalculate the correct "iconsize" attributes manually.
-      retrieveToolbarIconsizesFromTheme();
-
-      this.processPendingRequests();
-    }
-
-    this._overlayLoading = true;
-    DownloadsCommon.log("Loading overlay ", aOverlay);
-    document.loadOverlay(aOverlay, DOL_EOL_loadCallback.bind(this));
-  },
-
-  /**
-   * Re-processes all the currently pending requests, invoking the callbacks
-   * and/or loading more overlays as needed.  In most cases, there will be a
-   * single request for one overlay, that will be processed immediately.
-   */
-  processPendingRequests: function DOL_processPendingRequests()
-  {
-    // Re-process all the currently pending requests, yet allow more requests
-    // to be appended at the end of the array if we're not ready for them.
-    let currentLength = this._loadRequests.length;
-    for (let i = 0; i < currentLength; i++) {
-      let request = this._loadRequests.shift();
-
-      // We must call ensureOverlayLoaded again for each request, to check if
-      // the associated callback can be invoked now, or if we must still wait
-      // for the associated overlay to load.
-      this.ensureOverlayLoaded(request.overlay, request.callback);
-    }
-  }
-};
-
-XPCOMUtils.defineConstant(this, "DownloadsOverlayLoader", DownloadsOverlayLoader);
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsView
-
-/**
- * Builds and updates the downloads list widget, responding to changes in the
- * download state and real-time data.  In addition, handles part of the user
- * interaction events raised by the downloads list widget.
- */
-const DownloadsView = {
-  //////////////////////////////////////////////////////////////////////////////
-  //// Functions handling download items in the list
-
-  /**
-   * Maximum number of items shown by the list at any given time.
-   */
-  kItemCountLimit: 3,
-
-  /**
-   * Indicates whether we are still loading downloads data asynchronously.
-   */
-  loading: false,
-
-  /**
-   * Ordered array of all Download objects.  We need to keep this array because
-   * only a limited number of items are shown at once, and if an item that is
-   * currently visible is removed from the list, we might need to take another
-   * item from the array and make it appear at the bottom.
-   */
-  _downloads: [],
-
-  /**
-   * Associates the visible Download objects with their corresponding
-   * DownloadsViewItem object.  There is a limited number of view items in the
-   * panel at any given time.
-   */
-  _visibleViewItems: new Map(),
-
-  /**
-   * Called when the number of items in the list changes.
-   */
-  _itemCountChanged: function DV_itemCountChanged()
-  {
-    DownloadsCommon.log("The downloads item count has changed - we are tracking",
-                        this._downloads.length, "downloads in total.");
-    let count = this._downloads.length;
-    let hiddenCount = count - this.kItemCountLimit;
-
-    if (count > 0) {
-      DownloadsCommon.log("Setting the panel's hasdownloads attribute to true.");
-      DownloadsPanel.panel.setAttribute("hasdownloads", "true");
-    } else {
-      DownloadsCommon.log("Removing the panel's hasdownloads attribute.");
-      DownloadsPanel.panel.removeAttribute("hasdownloads");
-    }
-
-    // If we've got some hidden downloads, we should activate the
-    // DownloadsSummary. The DownloadsSummary will determine whether or not
-    // it's appropriate to actually display the summary.
-    DownloadsSummary.active = hiddenCount > 0;
-  },
-
-  /**
-   * Element corresponding to the list of downloads.
-   */
-  get richListBox()
-  {
-    delete this.richListBox;
-    return this.richListBox = document.getElementById("downloadsListBox");
-  },
-
-  /**
-   * Element corresponding to the button for showing more downloads.
-   */
-  get downloadsHistory()
-  {
-    delete this.downloadsHistory;
-    return this.downloadsHistory = document.getElementById("downloadsHistory");
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsData
-
-  /**
-   * Called before multiple downloads are about to be loaded.
-   */
-  onDataLoadStarting: function DV_onDataLoadStarting()
-  {
-    DownloadsCommon.log("onDataLoadStarting called for DownloadsView.");
-    this.loading = true;
-  },
-
-  /**
-   * Called after data loading finished.
-   */
-  onDataLoadCompleted: function DV_onDataLoadCompleted()
-  {
-    DownloadsCommon.log("onDataLoadCompleted called for DownloadsView.");
-
-    this.loading = false;
-
-    // We suppressed item count change notifications during the batch load, at
-    // this point we should just call the function once.
-    this._itemCountChanged();
-
-    // Notify the panel that all the initially available downloads have been
-    // loaded.  This ensures that the interface is visible, if still required.
-    DownloadsPanel.onViewLoadCompleted();
-  },
-
-  /**
-   * Called when the downloads database becomes unavailable (for example,
-   * entering Private Browsing Mode).  References to existing data should be
-   * discarded.
-   */
-  onDataInvalidated: function DV_onDataInvalidated()
-  {
-    DownloadsCommon.log("Downloads data has been invalidated. Cleaning up",
-                        "DownloadsView.");
-
-    DownloadsPanel.terminate();
-
-    // Clear the list by replacing with a shallow copy.
-    let emptyView = this.richListBox.cloneNode(false);
-    this.richListBox.parentNode.replaceChild(emptyView, this.richListBox);
-    this.richListBox = emptyView;
-    this._viewItems = {};
-    this._dataItems = [];
-  },
-
-  /**
-   * Called when a new download data item is available, either during the
-   * asynchronous data load or when a new download is started.
-   *
-   * @param aDownload
-   *        Download object that was just added.
-   * @param aNewest
-   *        When true, indicates that this item is the most recent and should be
-   *        added in the topmost position.  This happens when a new download is
-   *        started.  When false, indicates that the item is the least recent
-   *        and should be appended.  The latter generally happens during the
-   *        asynchronous data load.
-   */
-  onDownloadAdded(download, aNewest) {
-    DownloadsCommon.log("A new download data item was added - aNewest =",
-                        aNewest);
-
-    if (aNewest) {
-      this._downloads.unshift(download);
-    } else {
-      this._downloads.push(download);
-    }
-
-    let itemsNowOverflow = this._downloads.length > this.kItemCountLimit;
-    if (aNewest || !itemsNowOverflow) {
-      // The newly added item is visible in the panel and we must add the
-      // corresponding element.  This is either because it is the first item, or
-      // because it was added at the bottom but the list still doesn't overflow.
-      this._addViewItem(download, aNewest);
-    }
-    if (aNewest && itemsNowOverflow) {
-      // If the list overflows, remove the last item from the panel to make room
-      // for the new one that we just added at the top.
-      this._removeViewItem(this._downloads[this.kItemCountLimit]);
-    }
-
-    // For better performance during batch loads, don't update the count for
-    // every item, because the interface won't be visible until load finishes.
-    if (!this.loading) {
-      this._itemCountChanged();
-    }
-  },
-
-  onDownloadStateChanged(download) {
-    let viewItem = this._visibleViewItems.get(download);
-    if (viewItem) {
-      viewItem.onStateChanged();
-    }
-  },
-
-  onDownloadChanged(download) {
-    let viewItem = this._visibleViewItems.get(download);
-    if (viewItem) {
-      viewItem.onChanged();
-    }
-  },
-
-  /**
-   * Called when a data item is removed.  Ensures that the widget associated
-   * with the view item is removed from the user interface.
-   *
-   * @param download
-   *        Download object that is being removed.
-   */
-  onDownloadRemoved(download) {
-    DownloadsCommon.log("A download data item was removed.");
-
-    let itemIndex = this._downloads.indexOf(download);
-    this._downloads.splice(itemIndex, 1);
-
-    if (itemIndex < this.kItemCountLimit) {
-      // The item to remove is visible in the panel.
-      this._removeViewItem(download);
-      if (this._downloads.length >= this.kItemCountLimit) {
-        // Reinsert the next item into the panel.
-        this._addViewItem(this._downloads[this.kItemCountLimit - 1], false);
-      }
-    }
-
-    this._itemCountChanged();
-  },
-
-  /**
-   * Associates each richlistitem for a download with its corresponding
-   * DownloadsViewItemController object.
-   */
-  _controllersForElements: new Map(),
-
-  controllerForElement(element) {
-    return this._controllersForElements.get(element);
-  },
-
-  /**
-   * Creates a new view item associated with the specified data item, and adds
-   * it to the top or the bottom of the list.
-   */
-  _addViewItem(download, aNewest)
-  {
-    DownloadsCommon.log("Adding a new DownloadsViewItem to the downloads list.",
-                        "aNewest =", aNewest);
-
-    let element = document.createElement("richlistitem");
-    let viewItem = new DownloadsViewItem(download, element);
-    this._visibleViewItems.set(download, viewItem);
-    let viewItemController = new DownloadsViewItemController(download);
-    this._controllersForElements.set(element, viewItemController);
-    if (aNewest) {
-      this.richListBox.insertBefore(element, this.richListBox.firstChild);
-    } else {
-      this.richListBox.appendChild(element);
-    }
-  },
-
-  /**
-   * Removes the view item associated with the specified data item.
-   */
-  _removeViewItem(download) {
-    DownloadsCommon.log("Removing a DownloadsViewItem from the downloads list.");
-    let element = this._visibleViewItems.get(download).element;
-    let previousSelectedIndex = this.richListBox.selectedIndex;
-    this.richListBox.removeChild(element);
-    if (previousSelectedIndex != -1) {
-      this.richListBox.selectedIndex = Math.min(previousSelectedIndex,
-                                                this.richListBox.itemCount - 1);
-    }
-    this._visibleViewItems.delete(download);
-    this._controllersForElements.delete(element);
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// User interface event functions
-
-  /**
-   * Helper function to do commands on a specific download item.
-   *
-   * @param aEvent
-   *        Event object for the event being handled.  If the event target is
-   *        not a richlistitem that represents a download, this function will
-   *        walk up the parent nodes until it finds a DOM node that is.
-   * @param aCommand
-   *        The command to be performed.
-   */
-  onDownloadCommand: function DV_onDownloadCommand(aEvent, aCommand)
-  {
-    let target = aEvent.target;
-    while (target.nodeName != "richlistitem") {
-      target = target.parentNode;
-    }
-    DownloadsView.controllerForElement(target).doCommand(aCommand);
-  },
-
-  onDownloadClick: function DV_onDownloadClick(aEvent)
-  {
-    // Handle primary clicks only, and exclude the action button.
-    if (aEvent.button == 0 &&
-        !aEvent.originalTarget.hasAttribute("oncommand")) {
-      goDoCommand("downloadsCmd_open");
-    }
-  },
-
-  /**
-   * Handles keypress events on a download item.
-   */
-  onDownloadKeyPress: function DV_onDownloadKeyPress(aEvent)
-  {
-    // Pressing the key on buttons should not invoke the action because the
-    // event has already been handled by the button itself.
-    if (aEvent.originalTarget.hasAttribute("command") ||
-        aEvent.originalTarget.hasAttribute("oncommand")) {
-      return;
-    }
-
-    if (aEvent.charCode == " ".charCodeAt(0)) {
-      goDoCommand("downloadsCmd_pauseResume");
-      return;
-    }
-
-    if (aEvent.keyCode == KeyEvent.DOM_VK_ENTER ||
-        aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
-      goDoCommand("downloadsCmd_doDefault");
-    }
-  },
-
-
-  /**
-   * Mouse listeners to handle selection on hover.
-   */
-  onDownloadMouseOver: function DV_onDownloadMouseOver(aEvent)
-  {
-    if (aEvent.originalTarget.parentNode == this.richListBox)
-      this.richListBox.selectedItem = aEvent.originalTarget;
-  },
-  onDownloadMouseOut: function DV_onDownloadMouseOut(aEvent)
-  {
-    if (aEvent.originalTarget.parentNode == this.richListBox) {
-      // If the destination element is outside of the richlistitem, clear the
-      // selection.
-      let element = aEvent.relatedTarget;
-      while (element && element != aEvent.originalTarget) {
-        element = element.parentNode;
-      }
-      if (!element)
-        this.richListBox.selectedIndex = -1;
-    }
-  },
-
-  onDownloadContextMenu: function DV_onDownloadContextMenu(aEvent)
-  {
-    let element = this.richListBox.selectedItem;
-    if (!element) {
-      return;
-    }
-
-    DownloadsViewController.updateCommands();
-
-    // Set the state attribute so that only the appropriate items are displayed.
-    let contextMenu = document.getElementById("downloadsContextMenu");
-    contextMenu.setAttribute("state", element.getAttribute("state"));
-  },
-
-  onDownloadDragStart: function DV_onDownloadDragStart(aEvent)
-  {
-    let element = this.richListBox.selectedItem;
-    if (!element) {
-      return;
-    }
-
-    // We must check for existence synchronously because this is a DOM event.
-    let localFile = new FileUtils.File(DownloadsView.controllerForElement(element)
-                                                    .download.target.path);
-    if (!localFile.exists()) {
-      return;
-    }
-
-    let dataTransfer = aEvent.dataTransfer;
-    dataTransfer.mozSetDataAt("application/x-moz-file", localFile, 0);
-    dataTransfer.effectAllowed = "copyMove";
-    var url = Services.io.newFileURI(localFile).spec;
-    dataTransfer.setData("text/uri-list", url);
-    dataTransfer.setData("text/plain", url);
-    dataTransfer.addElement(element);
-
-    aEvent.stopPropagation();
-  }
-}
-
-XPCOMUtils.defineConstant(this, "DownloadsView", DownloadsView);
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsViewItem
-
-/**
- * Builds and updates a single item in the downloads list widget, responding to
- * changes in the download state and real-time data.
- *
- * @param download
- *        Download object to be associated with the view item.
- * @param aElement
- *        XUL element corresponding to the single download item in the view.
- */
-function DownloadsViewItem(download, aElement) {
-  this.download = download;
-
-  this.element = aElement;
-  this.element._shell = this;
-
-  this.element.setAttribute("type", "download");
-  this.element.classList.add("download-state");
-
-  this._updateState();
-}
-
-DownloadsViewItem.prototype = {
-  __proto__: DownloadsViewUI.DownloadElementShell.prototype,
-
-  /**
-   * The XUL element corresponding to the associated richlistbox item.
-   */
-  _element: null,
-
-  onStateChanged() {
-    this.element.setAttribute("image", this.image);
-    this.element.setAttribute("state",
-                              DownloadsCommon.stateOfDownload(this.download));
-  },
-
-  onChanged() {
-    this._updateProgress();
-  },
-};
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsViewController
-
-/**
- * Handles part of the user interaction events raised by the downloads list
- * widget, in particular the "commands" that apply to multiple items, and
- * dispatches the commands that apply to individual items.
- */
-const DownloadsViewController = {
-  //////////////////////////////////////////////////////////////////////////////
-  //// Initialization and termination
-
-  initialize: function DVC_initialize()
-  {
-    window.controllers.insertControllerAt(0, this);
-  },
-
-  terminate: function DVC_terminate()
-  {
-    window.controllers.removeController(this);
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// nsIController
-
-  supportsCommand: function DVC_supportsCommand(aCommand)
-  {
-    // Firstly, determine if this is a command that we can handle.
-    if (!(aCommand in this.commands) &&
-        !(aCommand in DownloadsViewItemController.prototype.commands)) {
-      return false;
-    }
-    // Secondly, determine if focus is on a control in the downloads list.
-    let element = document.commandDispatcher.focusedElement;
-    while (element && element != DownloadsView.richListBox) {
-      element = element.parentNode;
-    }
-    // We should handle the command only if the downloads list is among the
-    // ancestors of the focused element.
-    return !!element;
-  },
-
-  isCommandEnabled: function DVC_isCommandEnabled(aCommand)
-  {
-    // Handle commands that are not selection-specific.
-    if (aCommand == "downloadsCmd_clearList") {
-      return DownloadsCommon.getData(window).canRemoveFinished;
-    }
-
-    // Other commands are selection-specific.
-    let element = DownloadsView.richListBox.selectedItem;
-    return element && DownloadsView.controllerForElement(element)
-                                   .isCommandEnabled(aCommand);
-  },
-
-  doCommand: function DVC_doCommand(aCommand)
-  {
-    // If this command is not selection-specific, execute it.
-    if (aCommand in this.commands) {
-      this.commands[aCommand].apply(this);
-      return;
-    }
-
-    // Other commands are selection-specific.
-    let element = DownloadsView.richListBox.selectedItem;
-    if (element) {
-      // The doCommand function also checks if the command is enabled.
-      DownloadsView.controllerForElement(element).doCommand(aCommand);
-    }
-  },
-
-  onEvent: function () { },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Other functions
-
-  updateCommands: function DVC_updateCommands()
-  {
-    Object.keys(this.commands).forEach(goUpdateCommand);
-    Object.keys(DownloadsViewItemController.prototype.commands)
-          .forEach(goUpdateCommand);
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Selection-independent commands
-
-  /**
-   * This object contains one key for each command that operates regardless of
-   * the currently selected item in the list.
-   */
-  commands: {
-    downloadsCmd_clearList: function DVC_downloadsCmd_clearList()
-    {
-      DownloadsCommon.getData(window).removeFinished();
-    }
-  }
-};
-
-XPCOMUtils.defineConstant(this, "DownloadsViewController", DownloadsViewController);
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsViewItemController
-
-/**
- * Handles all the user interaction events, in particular the "commands",
- * related to a single item in the downloads list widgets.
- */
-function DownloadsViewItemController(download) {
-  this.download = download;
-}
-
-DownloadsViewItemController.prototype = {
-  isCommandEnabled: function DVIC_isCommandEnabled(aCommand)
-  {
-    switch (aCommand) {
-      case "downloadsCmd_open": {
-        if (!this.download.succeeded) {
-          return false;
-        }
-
-        let file = new FileUtils.File(this.download.target.path);
-        return file.exists();
-      }
-      case "downloadsCmd_show": {
-        let file = new FileUtils.File(this.download.target.path);
-        if (file.exists()) {
-          return true;
-        }
-
-        if (!this.download.target.partFilePath) {
-          return false;
-        }
-
-        let partFile = new FileUtils.File(this.download.target.partFilePath);
-        return partFile.exists();
-      }
-      case "downloadsCmd_pauseResume":
-        return this.download.hasPartialData && !this.download.error;
-      case "downloadsCmd_retry":
-        return this.download.canceled || this.download.error;
-      case "downloadsCmd_openReferrer":
-        return !!this.download.source.referrer;
-      case "cmd_delete":
-      case "downloadsCmd_cancel":
-      case "downloadsCmd_copyLocation":
-      case "downloadsCmd_doDefault":
-        return true;
-    }
-    return false;
-  },
-
-  doCommand: function DVIC_doCommand(aCommand)
-  {
-    if (this.isCommandEnabled(aCommand)) {
-      this.commands[aCommand].apply(this);
-    }
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Item commands
-
-  /**
-   * This object contains one key for each command that operates on this item.
-   *
-   * In commands, the "this" identifier points to the controller item.
-   */
-  commands: {
-    cmd_delete: function DVIC_cmd_delete()
-    {
-      DownloadsCommon.removeAndFinalizeDownload(this.download);
-      PlacesUtils.bhistory.removePage(
-                             NetUtil.newURI(this.download.source.url));
-    },
-
-    downloadsCmd_cancel: function DVIC_downloadsCmd_cancel()
-    {
-      this.download.cancel().catch(() => {});
-      this.download.removePartialData().catch(Cu.reportError);
-    },
-
-    downloadsCmd_open: function DVIC_downloadsCmd_open()
-    {
-      this.download.launch().catch(Cu.reportError);
-
-      // We explicitly close the panel here to give the user the feedback that
-      // their click has been received, and we're handling the action.
-      // Otherwise, we'd have to wait for the file-type handler to execute
-      // before the panel would close. This also helps to prevent the user from
-      // accidentally opening a file several times.
-      DownloadsPanel.hidePanel();
-    },
-
-    downloadsCmd_show: function DVIC_downloadsCmd_show()
-    {
-      let file = new FileUtils.File(this.download.target.path);
-      DownloadsCommon.showDownloadedFile(file);
-
-      // We explicitly close the panel here to give the user the feedback that
-      // their click has been received, and we're handling the action.
-      // Otherwise, we'd have to wait for the operating system file manager
-      // window to open before the panel closed. This also helps to prevent the
-      // user from opening the containing folder several times.
-      DownloadsPanel.hidePanel();
-    },
-
-    downloadsCmd_pauseResume: function DVIC_downloadsCmd_pauseResume()
-    {
-      if (this.download.stopped) {
-        this.download.start();
-      } else {
-        this.download.cancel();
-      }
-    },
-
-    downloadsCmd_retry: function DVIC_downloadsCmd_retry()
-    {
-      this.download.start().catch(() => {});
-    },
-
-    downloadsCmd_openReferrer: function DVIC_downloadsCmd_openReferrer()
-    {
-      openURL(this.download.source.referrer);
-    },
-
-    downloadsCmd_copyLocation: function DVIC_downloadsCmd_copyLocation()
-    {
-      let clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"]
-                      .getService(Ci.nsIClipboardHelper);
-      clipboard.copyString(this.download.source.url, document);
-    },
-
-    downloadsCmd_doDefault: function DVIC_downloadsCmd_doDefault()
-    {
-      const nsIDM = Ci.nsIDownloadManager;
-
-      // Determine the default command for the current item.
-      let defaultCommand = function () {
-        switch (DownloadsCommon.stateOfDownload(this.download)) {
-          case nsIDM.DOWNLOAD_NOTSTARTED:       return "downloadsCmd_cancel";
-          case nsIDM.DOWNLOAD_FINISHED:         return "downloadsCmd_open";
-          case nsIDM.DOWNLOAD_FAILED:           return "downloadsCmd_retry";
-          case nsIDM.DOWNLOAD_CANCELED:         return "downloadsCmd_retry";
-          case nsIDM.DOWNLOAD_PAUSED:           return "downloadsCmd_pauseResume";
-          case nsIDM.DOWNLOAD_QUEUED:           return "downloadsCmd_cancel";
-          case nsIDM.DOWNLOAD_BLOCKED_PARENTAL: return "downloadsCmd_openReferrer";
-          case nsIDM.DOWNLOAD_SCANNING:         return "downloadsCmd_show";
-          case nsIDM.DOWNLOAD_DIRTY:            return "downloadsCmd_openReferrer";
-          case nsIDM.DOWNLOAD_BLOCKED_POLICY:   return "downloadsCmd_openReferrer";
-        }
-        return "";
-      }.apply(this);
-      if (defaultCommand && this.isCommandEnabled(defaultCommand))
-        this.doCommand(defaultCommand);
-    }
-  }
-};
-
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsSummary
-
-/**
- * Manages the summary at the bottom of the downloads panel list if the number
- * of items in the list exceeds the panels limit.
- */
-const DownloadsSummary = {
-
-  /**
-   * Sets the active state of the summary. When active, the summary subscribes
-   * to the DownloadsCommon DownloadsSummaryData singleton.
-   *
-   * @param aActive
-   *        Set to true to activate the summary.
-   */
-  set active(aActive)
-  {
-    if (aActive == this._active || !this._summaryNode) {
-      return this._active;
-    }
-    if (aActive) {
-      DownloadsCommon.getSummary(window, DownloadsView.kItemCountLimit)
-                     .refreshView(this);
-    } else {
-      DownloadsFooter.showingSummary = false;
-    }
-
-    return this._active = aActive;
-  },
-
-  /**
-   * Returns the active state of the downloads summary.
-   */
-  get active() this._active,
-
-  _active: false,
-
-  /**
-   * Sets whether or not we show the progress bar.
-   *
-   * @param aShowingProgress
-   *        True if we should show the progress bar.
-   */
-  set showingProgress(aShowingProgress)
-  {
-    if (aShowingProgress) {
-      this._summaryNode.setAttribute("inprogress", "true");
-    } else {
-      this._summaryNode.removeAttribute("inprogress");
-    }
-    // If progress isn't being shown, then we simply do not show the summary.
-    return DownloadsFooter.showingSummary = aShowingProgress;
-  },
-
-  /**
-   * Sets the amount of progress that is visible in the progress bar.
-   *
-   * @param aValue
-   *        A value between 0 and 100 to represent the progress of the
-   *        summarized downloads.
-   */
-  set percentComplete(aValue)
-  {
-    if (this._progressNode) {
-      this._progressNode.setAttribute("value", aValue);
-    }
-    return aValue;
-  },
-
-  /**
-   * Sets the description for the download summary.
-   *
-   * @param aValue
-   *        A string representing the description of the summarized
-   *        downloads.
-   */
-  set description(aValue)
-  {
-    if (this._descriptionNode) {
-      this._descriptionNode.setAttribute("value", aValue);
-      this._descriptionNode.setAttribute("tooltiptext", aValue);
-    }
-    return aValue;
-  },
-
-  /**
-   * Sets the details for the download summary, such as the time remaining,
-   * the amount of bytes transferred, etc.
-   *
-   * @param aValue
-   *        A string representing the details of the summarized
-   *        downloads.
-   */
-  set details(aValue)
-  {
-    if (this._detailsNode) {
-      this._detailsNode.setAttribute("value", aValue);
-      this._detailsNode.setAttribute("tooltiptext", aValue);
-    }
-    return aValue;
-  },
-
-  /**
-   * Focuses the root element of the summary.
-   */
-  focus: function()
-  {
-    if (this._summaryNode) {
-      this._summaryNode.focus();
-    }
-  },
-
-  /**
-   * Respond to keydown events on the Downloads Summary node.
-   *
-   * @param aEvent
-   *        The keydown event being handled.
-   */
-  onKeyDown: function DS_onKeyDown(aEvent)
-  {
-    if (aEvent.charCode == " ".charCodeAt(0) ||
-        aEvent.keyCode == KeyEvent.DOM_VK_ENTER ||
-        aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
-      DownloadsPanel.showDownloadsHistory();
-    }
-  },
-
-  /**
-   * Respond to click events on the Downloads Summary node.
-   *
-   * @param aEvent
-   *        The click event being handled.
-   */
-  onClick: function DS_onClick(aEvent)
-  {
-    DownloadsPanel.showDownloadsHistory();
-  },
-
-  /**
-   * Element corresponding to the root of the downloads summary.
-   */
-  get _summaryNode()
-  {
-    let node = document.getElementById("downloadsSummary");
-    if (!node) {
-      return null;
-    }
-    delete this._summaryNode;
-    return this._summaryNode = node;
-  },
-
-  /**
-   * Element corresponding to the progress bar in the downloads summary.
-   */
-  get _progressNode()
-  {
-    let node = document.getElementById("downloadsSummaryProgress");
-    if (!node) {
-      return null;
-    }
-    delete this._progressNode;
-    return this._progressNode = node;
-  },
-
-  /**
-   * Element corresponding to the main description of the downloads
-   * summary.
-   */
-  get _descriptionNode()
-  {
-    let node = document.getElementById("downloadsSummaryDescription");
-    if (!node) {
-      return null;
-    }
-    delete this._descriptionNode;
-    return this._descriptionNode = node;
-  },
-
-  /**
-   * Element corresponding to the secondary description of the downloads
-   * summary.
-   */
-  get _detailsNode()
-  {
-    let node = document.getElementById("downloadsSummaryDetails");
-    if (!node) {
-      return null;
-    }
-    delete this._detailsNode;
-    return this._detailsNode = node;
-  }
-};
-
-XPCOMUtils.defineConstant(this, "DownloadsSummary", DownloadsSummary);
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsFooter
-
-/**
- * Manages events sent to to the footer vbox, which contains both the
- * DownloadsSummary as well as the "Show All Downloads" button.
- */
-const DownloadsFooter = {
-
-  /**
-   * Focuses the appropriate element within the footer. If the summary
-   * is visible, focus it. If not, focus the "Show All Downloads"
-   * button.
-   */
-  focus: function DF_focus()
-  {
-    if (this._showingSummary) {
-      DownloadsSummary.focus();
-    } else {
-      DownloadsView.downloadsHistory.focus();
-    }
-  },
-
-  _showingSummary: false,
-
-  /**
-   * Sets whether or not the Downloads Summary should be displayed in the
-   * footer. If not, the "Show All Downloads" button is shown instead.
-   */
-  set showingSummary(aValue)
-  {
-    if (this._footerNode) {
-      if (aValue) {
-        this._footerNode.setAttribute("showingsummary", "true");
-      } else {
-        this._footerNode.removeAttribute("showingsummary");
-      }
-      this._showingSummary = aValue;
-    }
-    return aValue;
-  },
-
-  /**
-   * Element corresponding to the footer of the downloads panel.
-   */
-  get _footerNode()
-  {
-    let node = document.getElementById("downloadsFooter");
-    if (!node) {
-      return null;
-    }
-    delete this._footerNode;
-    return this._footerNode = node;
-  }
-};
-
-XPCOMUtils.defineConstant(this, "DownloadsFooter", DownloadsFooter);
diff --git a/components/downloads/content/downloadsOverlay.xul b/components/downloads/content/downloadsOverlay.xul
deleted file mode 100644
index ca35ee3..0000000
--- a/components/downloads/content/downloadsOverlay.xul
+++ /dev/null
@@ -1,142 +0,0 @@
-<?xml version="1.0"?>
-# -*- Mode: HTML; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-# vim: set ts=2 et sw=2 tw=80:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this file,
-# You can obtain one at http://mozilla.org/MPL/2.0/.
-
-<?xml-stylesheet href="chrome://browser/content/downloads/downloads.css"?>
-<?xml-stylesheet href="chrome://browser/skin/downloads/downloads.css"?>
-
-<!DOCTYPE overlay SYSTEM "chrome://browser/locale/downloads/downloads.dtd">
-
-<overlay xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-         id="downloadsOverlay">
-
-  <commandset>
-    <command id="downloadsCmd_doDefault"
-             oncommand="goDoCommand('downloadsCmd_doDefault')"/>
-    <command id="downloadsCmd_pauseResume"
-             oncommand="goDoCommand('downloadsCmd_pauseResume')"/>
-    <command id="downloadsCmd_cancel"
-             oncommand="goDoCommand('downloadsCmd_cancel')"/>
-    <command id="downloadsCmd_open"
-             oncommand="goDoCommand('downloadsCmd_open')"/>
-    <command id="downloadsCmd_show"
-             oncommand="goDoCommand('downloadsCmd_show')"/>
-    <command id="downloadsCmd_retry"
-             oncommand="goDoCommand('downloadsCmd_retry')"/>
-    <command id="downloadsCmd_openReferrer"
-             oncommand="goDoCommand('downloadsCmd_openReferrer')"/>
-    <command id="downloadsCmd_copyLocation"
-             oncommand="goDoCommand('downloadsCmd_copyLocation')"/>
-    <command id="downloadsCmd_clearList"
-             oncommand="goDoCommand('downloadsCmd_clearList')"/>
-  </commandset>
-
-  <popupset id="mainPopupSet">
-    <!-- The panel has level="top" to ensure that it is never hidden by the
-         taskbar on Windows.  See bug 672365.  For accessibility to screen
-         readers, we use a label on the panel instead of the anchor because the
-         panel can also be displayed without an anchor. -->
-    <panel id="downloadsPanel"
-           aria-label="&downloads.title;"
-           role="group"
-           type="arrow"
-           orient="vertical"
-           level="top"
-           consumeoutsideclicks="true"
-           onpopupshown="DownloadsPanel.onPopupShown(event);"
-           onpopuphidden="DownloadsPanel.onPopupHidden(event);">
-      <!-- The following popup menu should be a child of the panel element,
-           otherwise flickering may occur when the cursor is moved over the area
-           of a disabled menu item that overlaps the panel.  See bug 492960. -->
-      <menupopup id="downloadsContextMenu"
-                 class="download-state">
-        <menuitem command="downloadsCmd_pauseResume"
-                  class="downloadPauseMenuItem"
-                  label="&cmd.pause.label;"
-                  accesskey="&cmd.pause.accesskey;"/>
-        <menuitem command="downloadsCmd_pauseResume"
-                  class="downloadResumeMenuItem"
-                  label="&cmd.resume.label;"
-                  accesskey="&cmd.resume.accesskey;"/>
-        <menuitem command="downloadsCmd_cancel"
-                  class="downloadCancelMenuItem"
-                  label="&cmd.cancel.label;"
-                  accesskey="&cmd.cancel.accesskey;"/>
-        <menuitem command="cmd_delete"
-                  class="downloadRemoveFromHistoryMenuItem"
-                  label="&cmd.removeFromHistory.label;"
-                  accesskey="&cmd.removeFromHistory.accesskey;"/>
-        <menuitem command="downloadsCmd_show"
-                  class="downloadShowMenuItem"
-#ifdef XP_MACOSX
-                  label="&cmd.showMac.label;"
-                  accesskey="&cmd.showMac.accesskey;"
-#else
-                  label="&cmd.show.label;"
-                  accesskey="&cmd.show.accesskey;"
-#endif
-                  />
-
-        <menuseparator class="downloadCommandsSeparator"/>
-
-        <menuitem command="downloadsCmd_openReferrer"
-                  label="&cmd.goToDownloadPage.label;"
-                  accesskey="&cmd.goToDownloadPage.accesskey;"/>
-        <menuitem command="downloadsCmd_copyLocation"
-                  label="&cmd.copyDownloadLink.label;"
-                  accesskey="&cmd.copyDownloadLink.accesskey;"/>
-
-        <menuseparator/>
-
-        <menuitem command="downloadsCmd_clearList"
-                  label="&cmd.clearList.label;"
-                  accesskey="&cmd.clearList.accesskey;"/>
-      </menupopup>
-
-      <richlistbox id="downloadsListBox"
-                   class="plain"
-                   flex="1"
-                   context="downloadsContextMenu"
-                   onmouseover="DownloadsView.onDownloadMouseOver(event);"
-                   onmouseout="DownloadsView.onDownloadMouseOut(event);"
-                   oncontextmenu="DownloadsView.onDownloadContextMenu(event);"
-                   ondragstart="DownloadsView.onDownloadDragStart(event);"/>
-      <description id="emptyDownloads"
-                   mousethrough="always">
-           &downloadsPanelEmpty.label;
-      </description>
-
-      <vbox id="downloadsFooter">
-        <hbox id="downloadsSummary"
-              align="center"
-              orient="horizontal"
-              onkeydown="DownloadsSummary.onKeyDown(event);"
-              onclick="DownloadsSummary.onClick(event);">
-          <image class="downloadTypeIcon" />
-          <vbox>
-            <description id="downloadsSummaryDescription"
-                         style="min-width: &downloadsSummary.minWidth2;"/>
-            <progressmeter id="downloadsSummaryProgress"
-                           class="downloadProgress"
-                           min="0"
-                           max="100"
-                           mode="normal" />
-            <description id="downloadsSummaryDetails"
-                         style="width: &downloadDetails.width;"
-                         crop="end"/>
-          </vbox>
-        </hbox>
-
-        <button id="downloadsHistory"
-                class="plain"
-                label="&downloadsHistory.label;"
-                accesskey="&downloadsHistory.accesskey;"
-                oncommand="DownloadsPanel.showDownloadsHistory();"/>
-      </vbox>
-    </panel>
-  </popupset>
-</overlay>
diff --git a/components/downloads/content/indicator.js b/components/downloads/content/indicator.js
deleted file mode 100644
index 1a2175a..0000000
--- a/components/downloads/content/indicator.js
+++ /dev/null
@@ -1,609 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * Handles the indicator that displays the progress of ongoing downloads, which
- * is also used as the anchor for the downloads panel.
- *
- * This module includes the following constructors and global objects:
- *
- * DownloadsButton
- * Main entry point for the downloads indicator.  Depending on how the toolbars
- * have been customized, this object determines if we should show a fully
- * functional indicator, a placeholder used during customization and in the
- * customization palette, or a neutral view as a temporary anchor for the
- * downloads panel.
- *
- * DownloadsIndicatorView
- * Builds and updates the actual downloads status widget, responding to changes
- * in the global status data, or provides a neutral view if the indicator is
- * removed from the toolbars and only used as a temporary anchor.  In addition,
- * handles the user interaction events raised by the widget.
- */
-
-"use strict";
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsButton
-
-/**
- * Main entry point for the downloads indicator.  Depending on how the toolbars
- * have been customized, this object determines if we should show a fully
- * functional indicator, a placeholder used during customization and in the
- * customization palette, or a neutral view as a temporary anchor for the
- * downloads panel.
- */
-const DownloadsButton = {
-  /**
-   * Location of the indicator overlay.
-   */
-  get kIndicatorOverlay()
-      "chrome://browser/content/downloads/indicatorOverlay.xul",
-
-  /**
-   * Returns a reference to the downloads button position placeholder, or null
-   * if not available because it has been removed from the toolbars.
-   */
-  get _placeholder()
-  {
-    return document.getElementById("downloads-button");
-  },
-
-  /**
-   * This function is called asynchronously just after window initialization.
-   *
-   * NOTE: This function should limit the input/output it performs to improve
-   *       startup time, and in particular should not cause the Download Manager
-   *       service to start.
-   */
-  initializeIndicator: function DB_initializeIndicator()
-  {
-    this._update();
-  },
-
-  /**
-   * Indicates whether toolbar customization is in progress.
-   */
-  _customizing: false,
-
-  /**
-   * This function is called when toolbar customization starts.
-   *
-   * During customization, we never show the actual download progress indication
-   * or the event notifications, but we show a neutral placeholder.  The neutral
-   * placeholder is an ordinary button defined in the browser window that can be
-   * moved freely between the toolbars and the customization palette.
-   */
-  customizeStart: function DB_customizeStart()
-  {
-    // Hide the indicator and prevent it to be displayed as a temporary anchor
-    // during customization, even if requested using the getAnchor method.
-    this._customizing = true;
-    this._anchorRequested = false;
-
-    let indicator = DownloadsIndicatorView.indicator;
-    if (indicator) {
-      indicator.collapsed = true;
-    }
-
-    let placeholder = this._placeholder;
-    if (placeholder) {
-      placeholder.collapsed = false;
-    }
-  },
-
-  /**
-   * This function is called when toolbar customization ends.
-   */
-  customizeDone: function DB_customizeDone()
-  {
-    this._customizing = false;
-    this._update();
-  },
-
-  /**
-   * This function is called during initialization or when toolbar customization
-   * ends.  It determines if we should enable or disable the object that keeps
-   * the indicator updated, and ensures that the placeholder is hidden unless it
-   * has been moved to the customization palette.
-   *
-   * NOTE: This function is also called on startup, thus it should limit the
-   *       input/output it performs, and in particular should not cause the
-   *       Download Manager service to start.
-   */
-  _update: function DB_update() {
-    this._updatePositionInternal();
-
-    if (!DownloadsCommon.useToolkitUI) {
-      DownloadsIndicatorView.ensureInitialized();
-    } else {
-      DownloadsIndicatorView.ensureTerminated();
-    }
-  },
-
-  /**
-   * Determines the position where the indicator should appear, and moves its
-   * associated element to the new position.  This does not happen if the
-   * indicator is currently being used as the anchor for the panel, to ensure
-   * that the panel doesn't flicker because we move the DOM element to which
-   * it's anchored.
-   */
-  updatePosition: function DB_updatePosition()
-  {
-    if (!this._anchorRequested) {
-      this._updatePositionInternal();
-    }
-  },
-
-  /**
-   * Determines the position where the indicator should appear, and moves its
-   * associated element to the new position.
-   *
-   * @return Anchor element, or null if the indicator is not visible.
-   */
-  _updatePositionInternal: function DB_updatePositionInternal()
-  {
-    let indicator = DownloadsIndicatorView.indicator;
-    if (!indicator) {
-      // Exit now if the indicator overlay isn't loaded yet.
-      return null;
-    }
-
-    let placeholder = this._placeholder;
-    if (!placeholder) {
-      // The placeholder has been removed from the browser window.
-      indicator.collapsed = true;
-      // Move the indicator to a safe position on the toolbar, since otherwise
-      // it may break the merge of adjacent items, like back/forward + urlbar.
-      indicator.parentNode.appendChild(indicator);
-      return null;
-    }
-
-    // Position the indicator where the placeholder is located.  We should
-    // update the position even if the placeholder is located on an invisible
-    // toolbar, because the toolbar may be displayed later.
-    placeholder.parentNode.insertBefore(indicator, placeholder);
-    placeholder.collapsed = true;
-    indicator.collapsed = false;
-
-    indicator.open = this._anchorRequested;
-
-    // Determine if the placeholder is located on an invisible toolbar.
-    if (!isElementVisible(placeholder.parentNode)) {
-      return null;
-    }
-
-    return DownloadsIndicatorView.indicatorAnchor;
-  },
-
-  /**
-   * Checks whether the indicator is, or will soon be visible in the browser
-   * window.
-   *
-   * @param aCallback
-   *        Called once the indicator overlay has loaded. Gets a boolean
-   *        argument representing the indicator visibility.
-   */
-  checkIsVisible: function DB_checkIsVisible(aCallback)
-  {
-    function DB_CEV_callback() {
-      if (!this._placeholder) {
-        aCallback(false);
-      } else {
-        let element = DownloadsIndicatorView.indicator || this._placeholder;
-        aCallback(isElementVisible(element.parentNode));
-      }
-    }
-    DownloadsOverlayLoader.ensureOverlayLoaded(this.kIndicatorOverlay,
-                                               DB_CEV_callback.bind(this));
-  },
-
-  /**
-   * Indicates whether we should try and show the indicator temporarily as an
-   * anchor for the panel, even if the indicator would be hidden by default.
-   */
-  _anchorRequested: false,
-
-  /**
-   * Ensures that there is an anchor available for the panel.
-   *
-   * @param aCallback
-   *        Called when the anchor is available, passing the element where the
-   *        panel should be anchored, or null if an anchor is not available (for
-   *        example because both the tab bar and the navigation bar are hidden).
-   */
-  getAnchor: function DB_getAnchor(aCallback)
-  {
-    // Do not allow anchoring the panel to the element while customizing.
-    if (this._customizing) {
-      aCallback(null);
-      return;
-    }
-
-    function DB_GA_callback() {
-      this._anchorRequested = true;
-      aCallback(this._updatePositionInternal());
-    }
-
-    DownloadsOverlayLoader.ensureOverlayLoaded(this.kIndicatorOverlay,
-                                               DB_GA_callback.bind(this));
-  },
-
-  /**
-   * Allows the temporary anchor to be hidden.
-   */
-  releaseAnchor: function DB_releaseAnchor()
-  {
-    this._anchorRequested = false;
-    this._updatePositionInternal();
-  },
-
-  get _tabsToolbar()
-  {
-    delete this._tabsToolbar;
-    return this._tabsToolbar = document.getElementById("TabsToolbar");
-  },
-
-  get _navBar()
-  {
-    delete this._navBar;
-    return this._navBar = document.getElementById("nav-bar");
-  }
-};
-
-Object.defineProperty(this, "DownloadsButton", {
-  value: DownloadsButton,
-  enumerable: true,
-  writable: false
-});
-
-////////////////////////////////////////////////////////////////////////////////
-//// DownloadsIndicatorView
-
-/**
- * Builds and updates the actual downloads status widget, responding to changes
- * in the global status data, or provides a neutral view if the indicator is
- * removed from the toolbars and only used as a temporary anchor.  In addition,
- * handles the user interaction events raised by the widget.
- */
-const DownloadsIndicatorView = {
-  /**
-   * True when the view is connected with the underlying downloads data.
-   */
-  _initialized: false,
-
-  /**
-   * True when the user interface elements required to display the indicator
-   * have finished loading in the browser window, and can be referenced.
-   */
-  _operational: false,
-
-  /**
-   * Prepares the downloads indicator to be displayed.
-   */
-  ensureInitialized: function DIV_ensureInitialized()
-  {
-    if (this._initialized) {
-      return;
-    }
-    this._initialized = true;
-
-    window.addEventListener("unload", this.onWindowUnload, false);
-    DownloadsCommon.getIndicatorData(window).addView(this);
-  },
-
-  /**
-   * Frees the internal resources related to the indicator.
-   */
-  ensureTerminated: function DIV_ensureTerminated()
-  {
-    if (!this._initialized) {
-      return;
-    }
-    this._initialized = false;
-
-    window.removeEventListener("unload", this.onWindowUnload, false);
-    DownloadsCommon.getIndicatorData(window).removeView(this);
-
-    // Reset the view properties, so that a neutral indicator is displayed if we
-    // are visible only temporarily as an anchor.
-    this.counter = "";
-    this.percentComplete = 0;
-    this.paused = false;
-    this.attention = false;
-  },
-
-  /**
-   * Ensures that the user interface elements required to display the indicator
-   * are loaded, then invokes the given callback.
-   */
-  _ensureOperational: function DIV_ensureOperational(aCallback)
-  {
-    if (this._operational) {
-      aCallback();
-      return;
-    }
-
-    function DIV_EO_callback() {
-      this._operational = true;
-
-      // If the view is initialized, we need to update the elements now that
-      // they are finally available in the document.
-      if (this._initialized) {
-        DownloadsCommon.getIndicatorData(window).refreshView(this);
-      }
-
-      aCallback();
-    }
-
-    DownloadsOverlayLoader.ensureOverlayLoaded(
-                                 DownloadsButton.kIndicatorOverlay,
-                                 DIV_EO_callback.bind(this));
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Direct control functions
-
-  /**
-   * Set while we are waiting for a notification to fade out.
-   */
-  _notificationTimeout: null,
-
-  /**
-   * If the status indicator is visible in its assigned position, shows for a
-   * brief time a visual notification of a relevant event, like a new download.
-   *
-   * @param aType
-   *        Set to "start" for new downloads, "finish" for completed downloads.
-   */
-  showEventNotification: function DIV_showEventNotification(aType)
-  {
-    if (!this._initialized) {
-      return;
-    }
-
-    if (!DownloadsCommon.animateNotifications) {
-      return;
-    }
-
-    // No need to show visual notification if the panel is visible.
-    if (DownloadsPanel.isPanelShowing) {
-      return;
-    }
-
-    function DIV_SEN_callback() {
-      if (this._notificationTimeout) {
-        clearTimeout(this._notificationTimeout);
-      }
-
-      // Now that the overlay is loaded, place the indicator in its final
-      // position.
-      DownloadsButton.updatePosition();
-
-      let indicator = this.indicator;
-      indicator.setAttribute("notification", aType);
-      this._notificationTimeout = setTimeout(
-        function () indicator.removeAttribute("notification"), 1000);
-    }
-
-    this._ensureOperational(DIV_SEN_callback.bind(this));
-  },
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// Callback functions from DownloadsIndicatorData
-
-  /**
-   * Indicates whether the indicator should be shown because there are some
-   * downloads to be displayed.
-   */
-  set hasDownloads(aValue)
-  {
-    if (this._hasDownloads != aValue) {
-      this._hasDownloads = aValue;
-
-      // If there is at least one download, ensure that the view elements are
-      // loaded before determining the position of the downloads button.
-      if (aValue) {
-        this._ensureOperational(function() DownloadsButton.updatePosition());
-      } else {
-        DownloadsButton.updatePosition();
-      }
-    }
-    return aValue;
-  },
-  get hasDownloads()
-  {
-    return this._hasDownloads;
-  },
-  _hasDownloads: false,
-
-  /**
-   * Status text displayed in the indicator.  If this is set to an empty value,
-   * then the small downloads icon is displayed instead of the text.
-   */
-  set counter(aValue)
-  {
-    if (!this._operational) {
-      return this._counter;
-    }
-
-    if (this._counter !== aValue) {
-      this._counter = aValue;
-      if (this._counter)
-        this.indicator.setAttribute("counter", "true");
-      else
-        this.indicator.removeAttribute("counter");
-      // We have to set the attribute instead of using the property because the
-      // XBL binding isn't applied if the element is invisible for any reason.
-      this._indicatorCounter.setAttribute("value", aValue);
-    }
-    return aValue;
-  },
-  _counter: null,
-
-  /**
-   * Progress indication to display, from 0 to 100, or -1 if unknown.  The
-   * progress bar is hidden if the current progress is unknown and no status
-   * text is set in the "counter" property.
-   */
-  set percentComplete(aValue)
-  {
-    if (!this._operational) {
-      return this._percentComplete;
-    }
-
-    if (this._percentComplete !== aValue) {
-      this._percentComplete = aValue;
-      if (this._percentComplete >= 0)
-        this.indicator.setAttribute("progress", "true");
-      else
-        this.indicator.removeAttribute("progress");
-      // We have to set the attribute instead of using the property because the
-      // XBL binding isn't applied if the element is invisible for any reason.
-      this._indicatorProgress.setAttribute("value", Math.max(aValue, 0));
-    }
-    return aValue;
-  },
-  _percentComplete: null,
-
-  /**
-   * Indicates whether the progress won't advance because of a paused state.
-   * Setting this property forces a paused progress bar to be displayed, even if
-   * the current progress information is unavailable.
-   */
-  set paused(aValue)
-  {
-    if (!this._operational) {
-      return this._paused;
-    }
-
-    if (this._paused != aValue) {
-      this._paused = aValue;
-      if (this._paused) {
-        this.indicator.setAttribute("paused", "true")
-      } else {
-        this.indicator.removeAttribute("paused");
-      }
-    }
-    return aValue;
-  },
-  _paused: false,
-
-  /**
-   * Set when the indicator should draw user attention to itself.
-   */
-  set attention(aValue)
-  {
-    if (!this._operational) {
-      return this._attention;
-    }
-
-    if (this._attention != aValue) {
-      this._attention = aValue;
-      if (aValue) {
-        this.indicator.setAttribute("attention", "true");
-      } else {
-        this.indicator.removeAttribute("attention");
-      }
-    }
-    return aValue;
-  },
-  _attention: false,
-
-  //////////////////////////////////////////////////////////////////////////////
-  //// User interface event functions
-
-  onWindowUnload: function DIV_onWindowUnload()
-  {
-    // This function is registered as an event listener, we can't use "this".
-    DownloadsIndicatorView.ensureTerminated();
-  },
-
-  onCommand: function DIV_onCommand(aEvent)
-  {
-    if (DownloadsCommon.useToolkitUI) {
-      // The panel won't suppress attention for us, we need to clear now.
-      DownloadsCommon.getIndicatorData(window).attention = false;
-      BrowserDownloadsUI();
-    } else {
-      DownloadsPanel.showPanel();
-    }
-
-    aEvent.stopPropagation();
-  },
-
-  onDragOver: function DIV_onDragOver(aEvent)
-  {
-    browserDragAndDrop.dragOver(aEvent);
-  },
-
-  onDrop: function DIV_onDrop(aEvent)
-  {
-    let dt = aEvent.dataTransfer;
-    // If dragged item is from our source, do not try to
-    // redownload already downloaded file.
-    if (dt.mozGetDataAt("application/x-moz-file", 0))
-      return;
-
-    let links = browserDragAndDrop.dropLinks(aEvent);
-    if (!links.length)
-      return;
-    let sourceDoc = dt.mozSourceNode ? dt.mozSourceNode.ownerDocument : document;
-    let handled = false;
-    for (let link of links) {
-      if (link.url.startsWith("about:"))
-        continue;
-      saveURL(link.url, link.name, null, true, true, null, sourceDoc);
-      handled = true;
-    }
-    if (handled) {
-      aEvent.preventDefault();
-    }
-  },
-
-  /**
-   * Returns a reference to the main indicator element, or null if the element
-   * is not present in the browser window yet.
-   */
-  get indicator()
-  {
-    let indicator = document.getElementById("downloads-indicator");
-    if (!indicator) {
-      return null;
-    }
-
-    // Once the element is loaded, it will never be unloaded.
-    delete this.indicator;
-    return this.indicator = indicator;
-  },
-
-  get indicatorAnchor()
-  {
-    delete this.indicatorAnchor;
-    return this.indicatorAnchor =
-      document.getElementById("downloads-indicator-anchor");
-  },
-
-  get _indicatorCounter()
-  {
-    delete this._indicatorCounter;
-    return this._indicatorCounter =
-      document.getElementById("downloads-indicator-counter");
-  },
-
-  get _indicatorProgress()
-  {
-    delete this._indicatorProgress;
-    return this._indicatorProgress =
-      document.getElementById("downloads-indicator-progress");
-  }
-};
-
-Object.defineProperty(this, "DownloadsIndicatorView", {
-  value: DownloadsIndicatorView,
-  enumerable: true,
-  writable: false
-});
diff --git a/components/downloads/content/indicatorOverlay.xul b/components/downloads/content/indicatorOverlay.xul
deleted file mode 100644
index efb6cab..0000000
--- a/components/downloads/content/indicatorOverlay.xul
+++ /dev/null
@@ -1,60 +0,0 @@
-<?xml version="1.0"?>
-<!-- -*- Mode: HTML; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- -->
-<!-- vim: set ts=2 et sw=2 tw=80: -->
-
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this file,
-   - You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<?xml-stylesheet href="chrome://browser/content/downloads/downloads.css"?>
-<?xml-stylesheet href="chrome://browser/skin/downloads/downloads.css"?>
-
-<!DOCTYPE overlay [
-  <!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd" >
-  %browserDTD;
-  <!ENTITY % downloadsDTD SYSTEM "chrome://browser/locale/downloads/downloads.dtd" >
-  %downloadsDTD;
-]>
-
-<overlay xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-         id="indicatorOverlay">
-
-  <popupset>
-    <!-- The downloads indicator is placed in its final toolbar location
-         programmatically, and can be shown temporarily even when its
-         placeholder is removed from the toolbars.  Its initial location within
-         the document must not be a toolbar or the toolbar palette, otherwise the
-         toolbar handling code could remove it from the document. -->
-    <toolbarbutton id="downloads-indicator"
-                   class="toolbarbutton-1 chromeclass-toolbar-additional"
-                   tooltiptext="&downloads.tooltip;"
-                   collapsed="true"
-                   oncommand="DownloadsIndicatorView.onCommand(event);"
-                   ondrop="DownloadsIndicatorView.onDrop(event);"
-                   ondragover="DownloadsIndicatorView.onDragOver(event);"
-                   ondragenter="DownloadsIndicatorView.onDragOver(event);"
-                   ondragleave="DownloadsIndicatorView.onDragLeave(event);"
-                   skipintoolbarset="true">
-      <!-- The panel's anchor area is smaller than the outer button, but must
-           always be visible and must not move or resize when the indicator
-           state changes, otherwise the panel could change its position or lose
-           its arrow unexpectedly. -->
-      <stack id="downloads-indicator-anchor"
-             class="toolbarbutton-icon">
-        <vbox id="downloads-indicator-progress-area"
-              pack="center">
-          <description id="downloads-indicator-counter"/>
-          <progressmeter id="downloads-indicator-progress"
-                         class="plain"
-                         min="0"
-                         max="100"/>
-        </vbox>
-        <vbox id="downloads-indicator-icon"/>
-        <vbox id="downloads-indicator-notification"/>
-      </stack>
-      <label class="toolbarbutton-text" crop="right" flex="1"
-             value="&downloads.label;"/>
-    </toolbarbutton>
-  </popupset>
-</overlay>
diff --git a/components/downloads/jar.mn b/components/downloads/jar.mn
deleted file mode 100644
index 8c0b519..0000000
--- a/components/downloads/jar.mn
+++ /dev/null
@@ -1,18 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-browser.jar:
-* content/browser/downloads/download.xml                      (content/download.xml)
-  content/browser/downloads/download.css                      (content/download.css)
-  content/browser/downloads/downloads.css                     (content/downloads.css)
-* content/browser/downloads/downloads.js                      (content/downloads.js)
-* content/browser/downloads/downloadsOverlay.xul              (content/downloadsOverlay.xul)
-  content/browser/downloads/indicator.js                      (content/indicator.js)
-  content/browser/downloads/indicatorOverlay.xul              (content/indicatorOverlay.xul)
-* content/browser/downloads/allDownloadsViewOverlay.xul       (content/allDownloadsViewOverlay.xul)
-  content/browser/downloads/allDownloadsViewOverlay.js        (content/allDownloadsViewOverlay.js)
-  content/browser/downloads/allDownloadsViewOverlay.css       (content/allDownloadsViewOverlay.css)
-* content/browser/downloads/contentAreaDownloadsView.xul      (content/contentAreaDownloadsView.xul)
-  content/browser/downloads/contentAreaDownloadsView.js       (content/contentAreaDownloadsView.js)
-  content/browser/downloads/contentAreaDownloadsView.css      (content/contentAreaDownloadsView.css)
diff --git a/components/downloads/moz.build b/components/downloads/moz.build
deleted file mode 100644
index abfaab7..0000000
--- a/components/downloads/moz.build
+++ /dev/null
@@ -1,23 +0,0 @@
-# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-JAR_MANIFESTS += ['jar.mn']
-
-EXTRA_COMPONENTS += [
-    'BrowserDownloads.manifest',
-    'DownloadsStartup.js',
-    'DownloadsUI.js',
-]
-
-EXTRA_JS_MODULES += [
-    'DownloadsLogger.jsm',
-    'DownloadsTaskbar.jsm',
-    'DownloadsViewUI.jsm',
-]
-
-EXTRA_PP_JS_MODULES += [
-    'DownloadsCommon.jsm',
-]