Merge pull request #998 from MoonchildProductions/master

Merge master into Sync-weave

5 files changed, 46 insertions, 747 deletions

diff --git a/toolkit/modules/AppConstants.jsm b/toolkit/modules/AppConstants.jsm
index 7c8a046e9..1e2204f7e 100644
--- a/toolkit/modules/AppConstants.jsm
+++ b/toolkit/modules/AppConstants.jsm
@@ -180,13 +180,6 @@ MOZ_SAFE_BROWSING:
   false,
 #endif
 
-  MOZ_MAINTENANCE_SERVICE:
-#ifdef MOZ_MAINTENANCE_SERVICE
-  true,
-#else
-  false,
-#endif
-
   DEBUG:
 #ifdef DEBUG
   true,
diff --git a/toolkit/modules/Deprecated.jsm b/toolkit/modules/Deprecated.jsm
index 7491a4938..981cd13ab 100644
--- a/toolkit/modules/Deprecated.jsm
+++ b/toolkit/modules/Deprecated.jsm
@@ -9,15 +9,21 @@ this.EXPORTED_SYMBOLS = [ "Deprecated" ];
 const Cu = Components.utils;
 const Ci = Components.interfaces;
 const PREF_DEPRECATION_WARNINGS = "devtools.errorconsole.deprecation_warnings";
+const PREF_PERFORMANCE_WARNINGS = "devtools.errorconsole.performance_warnings";
 
 Cu.import("resource://gre/modules/Services.jsm");
 
 // A flag that indicates whether deprecation warnings should be logged.
-var logWarnings = Services.prefs.getBoolPref(PREF_DEPRECATION_WARNINGS);
+var logDepWarnings = Services.prefs.getBoolPref(PREF_DEPRECATION_WARNINGS);
+var logPerfWarnings = Services.prefs.getBoolPref(PREF_PERFORMANCE_WARNINGS);
 
 Services.prefs.addObserver(PREF_DEPRECATION_WARNINGS,
   function (aSubject, aTopic, aData) {
-    logWarnings = Services.prefs.getBoolPref(PREF_DEPRECATION_WARNINGS);
+    logDepWarnings = Services.prefs.getBoolPref(PREF_DEPRECATION_WARNINGS);
+  }, false);
+Services.prefs.addObserver(PREF_PERFORMANCE_WARNINGS,
+  function (aSubject, aTopic, aData) {
+    logPerfWarnings = Services.prefs.getBoolPref(PREF_PERFORMANCE_WARNINGS);
   }, false);
 
 /**
@@ -58,7 +64,7 @@ this.Deprecated = {
    *        logged.
    */
   warning: function (aText, aUrl, aStack) {
-    if (!logWarnings) {
+    if (!logDepWarnings) {
       return;
     }
 
@@ -71,7 +77,42 @@ this.Deprecated = {
 
     let textMessage = "DEPRECATION WARNING: " + aText +
       "\nYou may find more details about this deprecation at: " +
-      aUrl + "\n" +
+      aUrl + "\nCallstack:\n" +
+      // Append a callstack part to the deprecation message.
+      stringifyCallstack(aStack);
+
+    // Report deprecation warning.
+    Cu.reportError(textMessage);
+  },
+
+  /**
+   * Log a performance warning.
+   *
+   * @param string aText
+   *        Performance issue warning text.
+   * @param string aUrl
+   *        A URL pointing to documentation describing performance
+   *        issue and the way to address it.
+   * @param nsIStackFrame aStack
+   *        An optional callstack. If it is not provided a
+   *        snapshot of the current JavaScript callstack will be
+   *        logged.
+   */
+  perfWarning: function (aText, aUrl, aStack) {
+    if (!logPerfWarnings) {
+      return;
+    }
+
+    // If URL is not provided, report an error.
+    if (!aUrl) {
+      Cu.reportError("Error in Deprecated.perfWarning: warnings must " +
+        "provide a URL documenting this performance issue.");
+      return;
+    }
+
+    let textMessage = "PERFORMANCE WARNING: " + aText +
+      "\nYou may find more details about this problem at: " +
+      aUrl + "\nCallstack:\n" +
       // Append a callstack part to the deprecation message.
       stringifyCallstack(aStack);
 
diff --git a/toolkit/modules/GMPInstallManager.jsm b/toolkit/modules/GMPInstallManager.jsm
deleted file mode 100644
index b5987ca55..000000000
--- a/toolkit/modules/GMPInstallManager.jsm
+++ /dev/null
@@ -1,523 +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/. */
-
-"use strict";
-
-this.EXPORTED_SYMBOLS = [];
-
-const {classes: Cc, interfaces: Ci, results: Cr, utils: Cu, manager: Cm} =
-  Components;
-// 1 day default
-const DEFAULT_SECONDS_BETWEEN_CHECKS = 60 * 60 * 24;
-
-var GMPInstallFailureReason = {
-  GMP_INVALID: 1,
-  GMP_HIDDEN: 2,
-  GMP_DISABLED: 3,
-  GMP_UPDATE_DISABLED: 4,
-};
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/FileUtils.jsm");
-Cu.import("resource://gre/modules/Promise.jsm");
-Cu.import("resource://gre/modules/Preferences.jsm");
-Cu.import("resource://gre/modules/Log.jsm");
-Cu.import("resource://gre/modules/osfile.jsm");
-Cu.import("resource://gre/modules/Task.jsm");
-Cu.import("resource://gre/modules/GMPUtils.jsm");
-Cu.import("resource://gre/modules/addons/ProductAddonChecker.jsm");
-
-this.EXPORTED_SYMBOLS = ["GMPInstallManager", "GMPExtractor", "GMPDownloader",
-                         "GMPAddon"];
-
-// Shared code for suppressing bad cert dialogs
-XPCOMUtils.defineLazyGetter(this, "gCertUtils", function() {
-  let temp = { };
-  Cu.import("resource://gre/modules/CertUtils.jsm", temp);
-  return temp;
-});
-
-XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
-                                  "resource://gre/modules/UpdateUtils.jsm");
-
-function getScopedLogger(prefix) {
-  // `PARENT_LOGGER_ID.` being passed here effectively links this logger
-  // to the parentLogger.
-  return Log.repository.getLoggerWithMessagePrefix("Toolkit.GMP", prefix + " ");
-}
-
-/**
- * Provides an easy API for downloading and installing GMP Addons
- */
-function GMPInstallManager() {
-}
-/**
- * Temp file name used for downloading
- */
-GMPInstallManager.prototype = {
-  /**
-   * Obtains a URL with replacement of vars
-   */
-  _getURL: function() {
-    let log = getScopedLogger("GMPInstallManager._getURL");
-    // Use the override URL if it is specified.  The override URL is just like
-    // the normal URL but it does not check the cert.
-    let url = GMPPrefs.get(GMPPrefs.KEY_URL_OVERRIDE);
-    if (url) {
-      log.info("Using override url: " + url);
-    } else {
-      url = GMPPrefs.get(GMPPrefs.KEY_URL);
-      log.info("Using url: " + url);
-    }
-
-    url = UpdateUtils.formatUpdateURL(url);
-
-    log.info("Using url (with replacement): " + url);
-    return url;
-  },
-  /**
-   * Performs an addon check.
-   * @return a promise which will be resolved or rejected.
-   *         The promise is resolved with an object with properties:
-   *           gmpAddons: array of GMPAddons
-   *           usedFallback: whether the data was collected from online or
-   *                         from fallback data within the build
-   *         The promise is rejected with an object with properties:
-   *           target: The XHR request object
-   *           status: The HTTP status code
-   *           type: Sometimes specifies type of rejection
-   */
-  checkForAddons: function() {
-    let log = getScopedLogger("GMPInstallManager.checkForAddons");
-    if (this._deferred) {
-        log.error("checkForAddons already called");
-        return Promise.reject({type: "alreadycalled"});
-    }
-    this._deferred = Promise.defer();
-    let url = this._getURL();
-
-    let allowNonBuiltIn = true;
-    let certs = null;
-    if (!Services.prefs.prefHasUserValue(GMPPrefs.KEY_URL_OVERRIDE)) {
-      allowNonBuiltIn = !GMPPrefs.get(GMPPrefs.KEY_CERT_REQUIREBUILTIN, true);
-      if (GMPPrefs.get(GMPPrefs.KEY_CERT_CHECKATTRS, true)) {
-        certs = gCertUtils.readCertPrefs(GMPPrefs.KEY_CERTS_BRANCH);
-      }
-    }
-
-    let addonPromise = ProductAddonChecker
-      .getProductAddonList(url, allowNonBuiltIn, certs);
-
-    addonPromise.then(res => {
-      if (!res || !res.gmpAddons) {
-        this._deferred.resolve({gmpAddons: []});
-      }
-      else {
-        res.gmpAddons = res.gmpAddons.map(a => new GMPAddon(a));
-        this._deferred.resolve(res);
-      }
-      delete this._deferred;
-    }, (ex) => {
-      this._deferred.reject(ex);
-      delete this._deferred;
-    });
-
-    return this._deferred.promise;
-  },
-  /**
-   * Installs the specified addon and calls a callback when done.
-   * @param gmpAddon The GMPAddon object to install
-   * @return a promise which will be resolved or rejected
-   *         The promise will resolve with an array of paths that were extracted
-   *         The promise will reject with an error object:
-   *           target: The XHR request object
-   *           status: The HTTP status code
-   *           type: A string to represent the type of error
-   *                 downloaderr, verifyerr or previouserrorencountered
-   */
-  installAddon: function(gmpAddon) {
-    if (this._deferred) {
-        log.error("previous error encountered");
-        return Promise.reject({type: "previouserrorencountered"});
-    }
-    this.gmpDownloader = new GMPDownloader(gmpAddon);
-    return this.gmpDownloader.start();
-  },
-  _getTimeSinceLastCheck: function() {
-    let now = Math.round(Date.now() / 1000);
-    // Default to 0 here because `now - 0` will be returned later if that case
-    // is hit. We want a large value so a check will occur.
-    let lastCheck = GMPPrefs.get(GMPPrefs.KEY_UPDATE_LAST_CHECK, 0);
-    // Handle clock jumps, return now since we want it to represent
-    // a lot of time has passed since the last check.
-    if (now < lastCheck) {
-      return now;
-    }
-    return now - lastCheck;
-  },
-  get _isEMEEnabled() {
-    return GMPPrefs.get(GMPPrefs.KEY_EME_ENABLED, true);
-  },
-  _isAddonEnabled: function(aAddon) {
-    return GMPPrefs.get(GMPPrefs.KEY_PLUGIN_ENABLED, true, aAddon);
-  },
-  _isAddonUpdateEnabled: function(aAddon) {
-    return this._isAddonEnabled(aAddon) &&
-           GMPPrefs.get(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, true, aAddon);
-  },
-  _updateLastCheck: function() {
-    let now = Math.round(Date.now() / 1000);
-    GMPPrefs.set(GMPPrefs.KEY_UPDATE_LAST_CHECK, now);
-  },
-  _versionchangeOccurred: function() {
-    let savedBuildID = GMPPrefs.get(GMPPrefs.KEY_BUILDID, null);
-    let buildID = Services.appinfo.platformBuildID;
-    if (savedBuildID == buildID) {
-      return false;
-    }
-    GMPPrefs.set(GMPPrefs.KEY_BUILDID, buildID);
-    return true;
-  },
-  /**
-   * Wrapper for checkForAddons and installAddon.
-   * Will only install if not already installed and will log the results.
-   * This will only install/update the OpenH264 and EME plugins
-   * @return a promise which will be resolved if all addons could be installed
-   *         successfully, rejected otherwise.
-   */
-  simpleCheckAndInstall: Task.async(function*() {
-    let log = getScopedLogger("GMPInstallManager.simpleCheckAndInstall");
-
-    if (this._versionchangeOccurred()) {
-      log.info("A version change occurred. Ignoring " +
-               "media.gmp-manager.lastCheck to check immediately for " +
-               "new or updated GMPs.");
-    } else {
-      let secondsBetweenChecks =
-        GMPPrefs.get(GMPPrefs.KEY_SECONDS_BETWEEN_CHECKS,
-                     DEFAULT_SECONDS_BETWEEN_CHECKS)
-      let secondsSinceLast = this._getTimeSinceLastCheck();
-      log.info("Last check was: " + secondsSinceLast +
-               " seconds ago, minimum seconds: " + secondsBetweenChecks);
-      if (secondsBetweenChecks > secondsSinceLast) {
-        log.info("Will not check for updates.");
-        return {status: "too-frequent-no-check"};
-      }
-    }
-
-    try {
-      let {usedFallback, gmpAddons} = yield this.checkForAddons();
-      this._updateLastCheck();
-      log.info("Found " + gmpAddons.length + " addons advertised.");
-      let addonsToInstall = gmpAddons.filter(function(gmpAddon) {
-        log.info("Found addon: " + gmpAddon.toString());
-
-        if (!gmpAddon.isValid) {
-          log.info("Addon |" + gmpAddon.id + "| is invalid.");
-          return false;
-        }
-
-        if (GMPUtils.isPluginHidden(gmpAddon)) {
-          log.info("Addon |" + gmpAddon.id + "| has been hidden.");
-          return false;
-        }
-
-        if (gmpAddon.isInstalled) {
-          log.info("Addon |" + gmpAddon.id + "| already installed.");
-          return false;
-        }
-
-        // Do not install from fallback if already installed as it
-        // may be a downgrade
-        if (usedFallback && gmpAddon.isUpdate) {
-         log.info("Addon |" + gmpAddon.id + "| not installing updates based " +
-                  "on fallback.");
-         return false;
-        }
-
-        let addonUpdateEnabled = false;
-        if (GMP_PLUGIN_IDS.indexOf(gmpAddon.id) >= 0) {
-          if (!this._isAddonEnabled(gmpAddon.id)) {
-            log.info("GMP |" + gmpAddon.id + "| has been disabled; skipping check.");
-          } else if (!this._isAddonUpdateEnabled(gmpAddon.id)) {
-            log.info("Auto-update is off for " + gmpAddon.id +
-                     ", skipping check.");
-          } else {
-            addonUpdateEnabled = true;
-          }
-        } else {
-          // Currently, we only support installs of OpenH264 and EME plugins.
-          log.info("Auto-update is off for unknown plugin '" + gmpAddon.id +
-                   "', skipping check.");
-        }
-
-        return addonUpdateEnabled;
-      }, this);
-
-      if (!addonsToInstall.length) {
-        log.info("No new addons to install, returning");
-        return {status: "nothing-new-to-install"};
-      }
-
-      let installResults = [];
-      let failureEncountered = false;
-      for (let addon of addonsToInstall) {
-        try {
-          yield this.installAddon(addon);
-          installResults.push({
-            id:     addon.id,
-            result: "succeeded",
-          });
-        } catch (e) {
-          failureEncountered = true;
-          installResults.push({
-            id:     addon.id,
-            result: "failed",
-          });
-        }
-      }
-      if (failureEncountered) {
-        throw {status:  "failed",
-               results: installResults};
-      }
-      return {status:  "succeeded",
-              results: installResults};
-    } catch (e) {
-      log.error("Could not check for addons", e);
-      throw e;
-    }
-  }),
-
-  /**
-   * Makes sure everything is cleaned up
-   */
-  uninit: function() {
-    let log = getScopedLogger("GMPInstallManager.uninit");
-    if (this._request) {
-      log.info("Aborting request");
-      this._request.abort();
-    }
-    if (this._deferred) {
-        log.info("Rejecting deferred");
-        this._deferred.reject({type: "uninitialized"});
-    }
-    log.info("Done cleanup");
-  },
-
-  /**
-   * If set to true, specifies to leave the temporary downloaded zip file.
-   * This is useful for tests.
-   */
-  overrideLeaveDownloadedZip: false,
-};
-
-/**
- * Used to construct a single GMP addon
- * GMPAddon objects are returns from GMPInstallManager.checkForAddons
- * GMPAddon objects can also be used in calls to GMPInstallManager.installAddon
- *
- * @param addon The ProductAddonChecker `addon` object
- */
-function GMPAddon(addon) {
-  let log = getScopedLogger("GMPAddon.constructor");
-  for (let name of Object.keys(addon)) {
-    this[name] = addon[name];
-  }
-  log.info ("Created new addon: " + this.toString());
-}
-
-GMPAddon.prototype = {
-  /**
-   * Returns a string representation of the addon
-   */
-  toString: function() {
-    return this.id + " (" +
-           "isValid: " + this.isValid +
-           ", isInstalled: " + this.isInstalled +
-           ", hashFunction: " + this.hashFunction+
-           ", hashValue: " + this.hashValue +
-           (this.size !== undefined ? ", size: " + this.size : "" ) +
-           ")";
-  },
-  /**
-   * If all the fields aren't specified don't consider this addon valid
-   * @return true if the addon is parsed and valid
-   */
-  get isValid() {
-    return this.id && this.URL && this.version &&
-      this.hashFunction && !!this.hashValue;
-  },
-  get isInstalled() {
-    return this.version &&
-      GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VERSION, "", this.id) === this.version;
-  },
-  get isEME() {
-    return this.id == "gmp-widevinecdm" || this.id.indexOf("gmp-eme-") == 0;
-  },
-  /**
-   * @return true if the addon has been previously installed and this is
-   * a new version, if this is a fresh install return false
-   */
-  get isUpdate() {
-    return this.version &&
-      GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VERSION, false, this.id);
-  },
-};
-/**
- * Constructs a GMPExtractor object which is used to extract a GMP zip
- * into the specified location. (Which typically leties per platform)
- * @param zipPath The path on disk of the zip file to extract
- */
-function GMPExtractor(zipPath, installToDirPath) {
-    this.zipPath = zipPath;
-    this.installToDirPath = installToDirPath;
-}
-GMPExtractor.prototype = {
-  /**
-   * Obtains a list of all the entries in a zipfile in the format of *.*.
-   * This also includes files inside directories.
-   *
-   * @param zipReader the nsIZipReader to check
-   * @return An array of string name entries which can be used
-   *         in nsIZipReader.extract
-   */
-  _getZipEntries: function(zipReader) {
-    let entries = [];
-    let enumerator = zipReader.findEntries("*.*");
-    while (enumerator.hasMore()) {
-      entries.push(enumerator.getNext());
-    }
-    return entries;
-  },
-  /**
-   * Installs the this.zipPath contents into the directory used to store GMP
-   * addons for the current platform.
-   *
-   * @return a promise which will be resolved or rejected
-   *         See GMPInstallManager.installAddon for resolve/rejected info
-   */
-  install: function() {
-    try {
-      let log = getScopedLogger("GMPExtractor.install");
-      this._deferred = Promise.defer();
-      log.info("Installing " + this.zipPath + "...");
-      // Get the input zip file
-      let zipFile = Cc["@mozilla.org/file/local;1"].
-                    createInstance(Ci.nsIFile);
-      zipFile.initWithPath(this.zipPath);
-
-      // Initialize a zipReader and obtain the entries
-      var zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
-                      createInstance(Ci.nsIZipReader);
-      zipReader.open(zipFile)
-      let entries = this._getZipEntries(zipReader);
-      let extractedPaths = [];
-
-      let destDir = Cc["@mozilla.org/file/local;1"].
-                    createInstance(Ci.nsILocalFile);
-      destDir.initWithPath(this.installToDirPath);
-      // Make sure the destination exists
-      if (!destDir.exists()) {
-        destDir.create(Ci.nsIFile.DIRECTORY_TYPE, parseInt("0755", 8));
-      }
-
-      // Extract each of the entries
-      entries.forEach(entry => {
-        // We don't need these types of files
-        if (entry.includes("__MACOSX") ||
-            entry == "_metadata/verified_contents.json" ||
-            entry == "imgs/icon-128x128.png") {
-          return;
-        }
-        let outFile = destDir.clone();
-        // Do not extract into directories. Extract all files to the same
-        // directory. DO NOT use |OS.Path.basename()| here, as in Windows it
-        // does not work properly with forward slashes (which we must use here).
-        let outBaseName = entry.slice(entry.lastIndexOf("/") + 1);
-        outFile.appendRelativePath(outBaseName);
-
-        zipReader.extract(entry, outFile);
-        extractedPaths.push(outFile.path);
-        // Ensure files are writable and executable. Otherwise we may be unable to
-        // execute or uninstall them.
-        outFile.permissions |= parseInt("0700", 8);
-        log.info(entry + " was successfully extracted to: " +
-            outFile.path);
-      });
-      zipReader.close();
-      if (!GMPInstallManager.overrideLeaveDownloadedZip) {
-        zipFile.remove(false);
-      }
-
-      log.info(this.zipPath + " was installed successfully");
-      this._deferred.resolve(extractedPaths);
-    } catch (e) {
-      if (zipReader) {
-        zipReader.close();
-      }
-      this._deferred.reject({
-        target: this,
-        status: e,
-        type: "exception"
-      });
-    }
-    return this._deferred.promise;
-  }
-};
-
-
-/**
- * Constructs an object which downloads and initiates an install of
- * the specified GMPAddon object.
- * @param gmpAddon The addon to install.
- */
-function GMPDownloader(gmpAddon)
-{
-  this._gmpAddon = gmpAddon;
-}
-
-GMPDownloader.prototype = {
-  /**
-   * Starts the download process for an addon.
-   * @return a promise which will be resolved or rejected
-   *         See GMPInstallManager.installAddon for resolve/rejected info
-   */
-  start: function() {
-    let log = getScopedLogger("GMPDownloader");
-    let gmpAddon = this._gmpAddon;
-
-    if (!gmpAddon.isValid) {
-      log.info("gmpAddon is not valid, will not continue");
-      return Promise.reject({
-        target: this,
-        status: status,
-        type: "downloaderr"
-      });
-    }
-
-    return ProductAddonChecker.downloadAddon(gmpAddon).then((zipPath) => {
-      let path = OS.Path.join(OS.Constants.Path.profileDir,
-                              gmpAddon.id,
-                              gmpAddon.version);
-      log.info("install to directory path: " + path);
-      let gmpInstaller = new GMPExtractor(zipPath, path);
-      let installPromise = gmpInstaller.install();
-      return installPromise.then(extractedPaths => {
-        // Success, set the prefs
-        let now = Math.round(Date.now() / 1000);
-        GMPPrefs.set(GMPPrefs.KEY_PLUGIN_LAST_UPDATE, now, gmpAddon.id);
-        // Remember our ABI, so that if the profile is migrated to another
-        // platform or from 32 -> 64 bit, we notice and don't try to load the
-        // unexecutable plugin library.
-        GMPPrefs.set(GMPPrefs.KEY_PLUGIN_ABI, UpdateUtils.ABI, gmpAddon.id);
-        // Setting the version pref signals installation completion to consumers,
-        // if you need to set other prefs etc. do it before this.
-        GMPPrefs.set(GMPPrefs.KEY_PLUGIN_VERSION, gmpAddon.version,
-                     gmpAddon.id);
-        return extractedPaths;
-      });
-    });
-  },
-};
diff --git a/toolkit/modules/GMPUtils.jsm b/toolkit/modules/GMPUtils.jsm
deleted file mode 100644
index 9e41a7a61..000000000
--- a/toolkit/modules/GMPUtils.jsm
+++ /dev/null
@@ -1,208 +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/. */
-
-"use strict";
-
-const {classes: Cc, interfaces: Ci, results: Cr, utils: Cu, manager: Cm} =
-  Components;
-
-this.EXPORTED_SYMBOLS = [ "EME_ADOBE_ID",
-                          "GMP_PLUGIN_IDS",
-                          "GMPPrefs",
-                          "GMPUtils",
-                          "OPEN_H264_ID",
-                          "WIDEVINE_ID" ];
-
-Cu.import("resource://gre/modules/Preferences.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
-
-// GMP IDs
-const OPEN_H264_ID  = "gmp-gmpopenh264";
-const EME_ADOBE_ID  = "gmp-eme-adobe";
-const WIDEVINE_ID   = "gmp-widevinecdm";
-const GMP_PLUGIN_IDS = [ OPEN_H264_ID, EME_ADOBE_ID, WIDEVINE_ID ];
-
-var GMPPluginUnsupportedReason = {
-  NOT_WINDOWS: 1,
-  WINDOWS_VERSION: 2,
-};
-
-var GMPPluginHiddenReason = {
-  UNSUPPORTED: 1,
-  EME_DISABLED: 2,
-};
-
-this.GMPUtils = {
-  /**
-   * Checks whether or not a given plugin is hidden. Hidden plugins are neither
-   * downloaded nor displayed in the addons manager.
-   * @param   aPlugin
-   *          The plugin to check.
-   */
-  isPluginHidden: function(aPlugin) {
-    if (this._is32bitModeMacOS()) {
-      // GMPs are hidden on MacOS when running in 32 bit mode.
-      // See bug 1291537.
-      return true;
-    }
-    if (!aPlugin.isEME) {
-      return false;
-    }
-
-    if (!this._isPluginSupported(aPlugin) ||
-        !this._isPluginVisible(aPlugin)) {
-      return true;
-    }
-
-    if (!GMPPrefs.get(GMPPrefs.KEY_EME_ENABLED, true)) {
-      return true;
-    }
-
-    return false;
-  },
-
-  /**
-   * Checks whether or not a given plugin is supported by the current OS.
-   * @param   aPlugin
-   *          The plugin to check.
-   */
-  _isPluginSupported: function(aPlugin) {
-    if (this._isPluginForceSupported(aPlugin)) {
-      return true;
-    }
-    if (aPlugin.id == EME_ADOBE_ID) {
-      // Windows Vista and later only supported by Adobe EME.
-      return AppConstants.isPlatformAndVersionAtLeast("win", "6");
-    } else if (aPlugin.id == WIDEVINE_ID) {
-      // The Widevine plugin is available for Windows versions Vista and later,
-      // Mac OSX, and Linux.
-      return AppConstants.isPlatformAndVersionAtLeast("win", "6") ||
-             AppConstants.platform == "macosx" ||
-             AppConstants.platform == "linux";
-    }
-
-    return true;
-  },
-
-  _is32bitModeMacOS: function() {
-    if (AppConstants.platform != "macosx") {
-      return false;
-    }
-    return Services.appinfo.XPCOMABI.split("-")[0] == "x86";
-  },
-
-  /**
-   * Checks whether or not a given plugin is visible in the addons manager
-   * UI and the "enable DRM" notification box. This can be used to test
-   * plugins that aren't yet turned on in the mozconfig.
-   * @param   aPlugin
-   *          The plugin to check.
-   */
-  _isPluginVisible: function(aPlugin) {
-    return GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VISIBLE, false, aPlugin.id);
-  },
-
-  /**
-   * Checks whether or not a given plugin is forced-supported. This is used
-   * in automated tests to override the checks that prevent GMPs running on an
-   * unsupported platform.
-   * @param   aPlugin
-   *          The plugin to check.
-   */
-  _isPluginForceSupported: function(aPlugin) {
-    return GMPPrefs.get(GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, false, aPlugin.id);
-  },
-};
-
-/**
- * Manages preferences for GMP addons
- */
-this.GMPPrefs = {
-  KEY_EME_ENABLED:              "media.eme.enabled",
-  KEY_PLUGIN_ENABLED:           "media.{0}.enabled",
-  KEY_PLUGIN_LAST_UPDATE:       "media.{0}.lastUpdate",
-  KEY_PLUGIN_VERSION:           "media.{0}.version",
-  KEY_PLUGIN_AUTOUPDATE:        "media.{0}.autoupdate",
-  KEY_PLUGIN_VISIBLE:           "media.{0}.visible",
-  KEY_PLUGIN_ABI:               "media.{0}.abi",
-  KEY_PLUGIN_FORCE_SUPPORTED:   "media.{0}.forceSupported",
-  KEY_URL:                      "media.gmp-manager.url",
-  KEY_URL_OVERRIDE:             "media.gmp-manager.url.override",
-  KEY_CERT_CHECKATTRS:          "media.gmp-manager.cert.checkAttributes",
-  KEY_CERT_REQUIREBUILTIN:      "media.gmp-manager.cert.requireBuiltIn",
-  KEY_UPDATE_LAST_CHECK:        "media.gmp-manager.lastCheck",
-  KEY_SECONDS_BETWEEN_CHECKS:   "media.gmp-manager.secondsBetweenChecks",
-  KEY_UPDATE_ENABLED:           "media.gmp-manager.updateEnabled",
-  KEY_APP_DISTRIBUTION:         "distribution.id",
-  KEY_APP_DISTRIBUTION_VERSION: "distribution.version",
-  KEY_BUILDID:                  "media.gmp-manager.buildID",
-  KEY_CERTS_BRANCH:             "media.gmp-manager.certs.",
-  KEY_PROVIDER_ENABLED:         "media.gmp-provider.enabled",
-  KEY_LOG_BASE:                 "media.gmp.log.",
-  KEY_LOGGING_LEVEL:            "media.gmp.log.level",
-  KEY_LOGGING_DUMP:             "media.gmp.log.dump",
-
-  /**
-   * Obtains the specified preference in relation to the specified plugin.
-   * @param aKey The preference key value to use.
-   * @param aDefaultValue The default value if no preference exists.
-   * @param aPlugin The plugin to scope the preference to.
-   * @return The obtained preference value, or the defaultValue if none exists.
-   */
-  get: function(aKey, aDefaultValue, aPlugin) {
-    if (aKey === this.KEY_APP_DISTRIBUTION ||
-        aKey === this.KEY_APP_DISTRIBUTION_VERSION) {
-      let prefValue = "default";
-      try {
-        prefValue = Services.prefs.getDefaultBranch(null).getCharPref(aKey);
-      } catch (e) {
-        // use default when pref not found
-      }
-      return prefValue;
-    }
-    return Preferences.get(this.getPrefKey(aKey, aPlugin), aDefaultValue);
-  },
-
-  /**
-   * Sets the specified preference in relation to the specified plugin.
-   * @param aKey The preference key value to use.
-   * @param aVal The value to set.
-   * @param aPlugin The plugin to scope the preference to.
-   */
-  set: function(aKey, aVal, aPlugin) {
-    Preferences.set(this.getPrefKey(aKey, aPlugin), aVal);
-  },
-
-  /**
-   * Checks whether or not the specified preference is set in relation to the
-   * specified plugin.
-   * @param aKey The preference key value to use.
-   * @param aPlugin The plugin to scope the preference to.
-   * @return true if the preference is set, false otherwise.
-   */
-  isSet: function(aKey, aPlugin) {
-    return Preferences.isSet(this.getPrefKey(aKey, aPlugin));
-  },
-
-  /**
-   * Resets the specified preference in relation to the specified plugin to its
-   * default.
-   * @param aKey The preference key value to use.
-   * @param aPlugin The plugin to scope the preference to.
-   */
-  reset: function(aKey, aPlugin) {
-    Preferences.reset(this.getPrefKey(aKey, aPlugin));
-  },
-
-  /**
-   * Scopes the specified preference key to the specified plugin.
-   * @param aKey The preference key value to use.
-   * @param aPlugin The plugin to scope the preference to.
-   * @return A preference key scoped to the specified plugin.
-   */
-  getPrefKey: function(aKey, aPlugin) {
-    return aKey.replace("{0}", aPlugin || "");
-  },
-};
diff --git a/toolkit/modules/moz.build b/toolkit/modules/moz.build
index e288d11c8..e0acdb19e 100644
--- a/toolkit/modules/moz.build
+++ b/toolkit/modules/moz.build
@@ -46,8 +46,6 @@ EXTRA_JS_MODULES += [
     'FinderIterator.jsm',
     'FormLikeFactory.jsm',
     'Geometry.jsm',
-    'GMPInstallManager.jsm',
-    'GMPUtils.jsm',
     'Http.jsm',
     'InlineSpellChecker.jsm',
     'InlineSpellCheckerContent.jsm',
@@ -105,11 +103,9 @@ EXTRA_JS_MODULES.sessionstore += ['sessionstore/Utils.jsm']
 EXTRA_PP_JS_MODULES += [
     'NewTabUtils.jsm',
     'Troubleshoot.jsm',
+    'UpdateChannel.jsm',
 ]
 
-if not CONFIG['MOZ_WEBEXTENSIONS']:
-  EXTRA_PP_JS_MODULES += ['UpdateChannel.jsm']
-
 if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa'):
     DEFINES['CAN_DRAW_IN_TITLEBAR'] = 1