Remove Basilisk from the Unified XUL Platform repository

Development will proceed at https://github.com/MoonchildProductions/Basilisk

1 files changed, 0 insertions, 729 deletions

diff --git a/application/basilisk/base/content/browser-addons.js b/application/basilisk/base/content/browser-addons.js
deleted file mode 100644
index 733114ba9..000000000
--- a/application/basilisk/base/content/browser-addons.js
+++ /dev/null
@@ -1,729 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
- * 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/. */
-
-// Removes a doorhanger notification if all of the installs it was notifying
-// about have ended in some way.
-function removeNotificationOnEnd(notification, installs) {
-  let count = installs.length;
-
-  function maybeRemove(install) {
-    install.removeListener(this);
-
-    if (--count == 0) {
-      // Check that the notification is still showing
-      let current = PopupNotifications.getNotification(notification.id, notification.browser);
-      if (current === notification)
-        notification.remove();
-    }
-  }
-
-  for (let install of installs) {
-    install.addListener({
-      onDownloadCancelled: maybeRemove,
-      onDownloadFailed: maybeRemove,
-      onInstallFailed: maybeRemove,
-      onInstallEnded: maybeRemove
-    });
-  }
-}
-
-const gXPInstallObserver = {
-  _findChildShell: function (aDocShell, aSoughtShell)
-  {
-    if (aDocShell == aSoughtShell)
-      return aDocShell;
-
-    var node = aDocShell.QueryInterface(Components.interfaces.nsIDocShellTreeItem);
-    for (var i = 0; i < node.childCount; ++i) {
-      var docShell = node.getChildAt(i);
-      docShell = this._findChildShell(docShell, aSoughtShell);
-      if (docShell == aSoughtShell)
-        return docShell;
-    }
-    return null;
-  },
-
-  _getBrowser: function (aDocShell)
-  {
-    for (let browser of gBrowser.browsers) {
-      if (this._findChildShell(browser.docShell, aDocShell))
-        return browser;
-    }
-    return null;
-  },
-
-  pendingInstalls: new WeakMap(),
-
-  showInstallConfirmation: function(browser, installInfo, height = undefined) {
-    // If the confirmation notification is already open cache the installInfo
-    // and the new confirmation will be shown later
-    if (PopupNotifications.getNotification("addon-install-confirmation", browser)) {
-      let pending = this.pendingInstalls.get(browser);
-      if (pending) {
-        pending.push(installInfo);
-      } else {
-        this.pendingInstalls.set(browser, [installInfo]);
-      }
-      return;
-    }
-
-    let showNextConfirmation = () => {
-      // Make sure the browser is still alive.
-      if (gBrowser.browsers.indexOf(browser) == -1)
-        return;
-
-      let pending = this.pendingInstalls.get(browser);
-      if (pending && pending.length)
-        this.showInstallConfirmation(browser, pending.shift());
-    }
-
-    // If all installs have already been cancelled in some way then just show
-    // the next confirmation
-    if (installInfo.installs.every(i => i.state != AddonManager.STATE_DOWNLOADED)) {
-      showNextConfirmation();
-      return;
-    }
-
-    const anchorID = "addons-notification-icon";
-
-    // Make notifications persist a minimum of 30 seconds
-    var options = {
-      displayURI: installInfo.originatingURI,
-      timeout: Date.now() + 30000,
-    };
-
-    let cancelInstallation = () => {
-      if (installInfo) {
-        for (let install of installInfo.installs) {
-          // The notification may have been closed because the add-ons got
-          // cancelled elsewhere, only try to cancel those that are still
-          // pending install.
-          if (install.state != AddonManager.STATE_CANCELLED)
-            install.cancel();
-        }
-      }
-
-      this.acceptInstallation = null;
-
-      showNextConfirmation();
-    };
-
-    let unsigned = installInfo.installs.filter(i => i.addon.signedState <= AddonManager.SIGNEDSTATE_MISSING);
-    let someUnsigned = unsigned.length > 0 && unsigned.length < installInfo.installs.length;
-
-    options.eventCallback = (aEvent) => {
-      switch (aEvent) {
-        case "removed":
-          cancelInstallation();
-          break;
-        case "shown":
-          let addonList = document.getElementById("addon-install-confirmation-content");
-          while (addonList.firstChild)
-            addonList.firstChild.remove();
-
-          for (let install of installInfo.installs) {
-            let container = document.createElement("hbox");
-
-            let name = document.createElement("label");
-            name.setAttribute("value", install.addon.name);
-            name.setAttribute("class", "addon-install-confirmation-name");
-            container.appendChild(name);
-
-            if (someUnsigned && install.addon.signedState <= AddonManager.SIGNEDSTATE_MISSING) {
-              let unsigned = document.createElement("label");
-              unsigned.setAttribute("value", gNavigatorBundle.getString("addonInstall.unsigned"));
-              unsigned.setAttribute("class", "addon-install-confirmation-unsigned");
-              container.appendChild(unsigned);
-            }
-
-            addonList.appendChild(container);
-          }
-
-          this.acceptInstallation = () => {
-            for (let install of installInfo.installs)
-              install.install();
-            installInfo = null;
-          };
-          break;
-      }
-    };
-
-    options.learnMoreURL = Services.urlFormatter.formatURLPref("app.support.baseURL");
-
-    let messageString;
-    let notification = document.getElementById("addon-install-confirmation-notification");
-    if (unsigned.length == installInfo.installs.length) {
-      // None of the add-ons are verified
-      messageString = gNavigatorBundle.getString("addonConfirmInstallUnsigned.message");
-      notification.setAttribute("warning", "true");
-      options.learnMoreURL += "unsigned-addons";
-    }
-    else if (unsigned.length == 0) {
-      // All add-ons are verified or don't need to be verified
-      messageString = gNavigatorBundle.getString("addonConfirmInstall.message");
-      notification.removeAttribute("warning");
-      options.learnMoreURL += "find-and-install-add-ons";
-    }
-    else {
-      // Some of the add-ons are unverified, the list of names will indicate
-      // which
-      messageString = gNavigatorBundle.getString("addonConfirmInstallSomeUnsigned.message");
-      notification.setAttribute("warning", "true");
-      options.learnMoreURL += "unsigned-addons";
-    }
-
-    let brandBundle = document.getElementById("bundle_brand");
-    let brandShortName = brandBundle.getString("brandShortName");
-
-    messageString = PluralForm.get(installInfo.installs.length, messageString);
-    messageString = messageString.replace("#1", brandShortName);
-    messageString = messageString.replace("#2", installInfo.installs.length);
-
-    let cancelButton = document.getElementById("addon-install-confirmation-cancel");
-    cancelButton.label = gNavigatorBundle.getString("addonInstall.cancelButton.label");
-    cancelButton.accessKey = gNavigatorBundle.getString("addonInstall.cancelButton.accesskey");
-
-    let acceptButton = document.getElementById("addon-install-confirmation-accept");
-    acceptButton.label = gNavigatorBundle.getString("addonInstall.acceptButton.label");
-    acceptButton.accessKey = gNavigatorBundle.getString("addonInstall.acceptButton.accesskey");
-
-    if (height) {
-      let notification = document.getElementById("addon-install-confirmation-notification");
-      notification.style.minHeight = height + "px";
-    }
-
-    let tab = gBrowser.getTabForBrowser(browser);
-    if (tab) {
-      gBrowser.selectedTab = tab;
-    }
-
-    let popup = PopupNotifications.show(browser, "addon-install-confirmation",
-                                        messageString, anchorID, null, null,
-                                        options);
-
-    removeNotificationOnEnd(popup, installInfo.installs);
-  },
-
-  observe: function (aSubject, aTopic, aData)
-  {
-    var brandBundle = document.getElementById("bundle_brand");
-    var installInfo = aSubject.QueryInterface(Components.interfaces.amIWebInstallInfo);
-    var browser = installInfo.browser;
-
-    // Make sure the browser is still alive.
-    if (!browser || gBrowser.browsers.indexOf(browser) == -1)
-      return;
-
-    const anchorID = "addons-notification-icon";
-    var messageString, action;
-    var brandShortName = brandBundle.getString("brandShortName");
-
-    var notificationID = aTopic;
-    // Make notifications persist a minimum of 30 seconds
-    var options = {
-      displayURI: installInfo.originatingURI,
-      timeout: Date.now() + 30000,
-    };
-
-    switch (aTopic) {
-    case "addon-install-disabled": {
-      notificationID = "xpinstall-disabled";
-
-      if (gPrefService.prefIsLocked("xpinstall.enabled")) {
-        messageString = gNavigatorBundle.getString("xpinstallDisabledMessageLocked");
-        buttons = [];
-      }
-      else {
-        messageString = gNavigatorBundle.getString("xpinstallDisabledMessage");
-
-        action = {
-          label: gNavigatorBundle.getString("xpinstallDisabledButton"),
-          accessKey: gNavigatorBundle.getString("xpinstallDisabledButton.accesskey"),
-          callback: function editPrefs() {
-            gPrefService.setBoolPref("xpinstall.enabled", true);
-          }
-        };
-      }
-
-      PopupNotifications.show(browser, notificationID, messageString, anchorID,
-                              action, null, options);
-      break; }
-    case "addon-install-origin-blocked": {
-      messageString = gNavigatorBundle.getFormattedString("xpinstallPromptMessage",
-                        [brandShortName]);
-
-      let popup = PopupNotifications.show(browser, notificationID,
-                                          messageString, anchorID,
-                                          null, null, options);
-      removeNotificationOnEnd(popup, installInfo.installs);
-      break; }
-    case "addon-install-blocked": {
-      messageString = gNavigatorBundle.getFormattedString("xpinstallPromptMessage",
-                        [brandShortName]);
-
-      action = {
-        label: gNavigatorBundle.getString("xpinstallPromptAllowButton"),
-        accessKey: gNavigatorBundle.getString("xpinstallPromptAllowButton.accesskey"),
-        callback: function() {
-          installInfo.install();
-        }
-      };
-
-      let popup = PopupNotifications.show(browser, notificationID,
-                                          messageString, anchorID,
-                                          action, null, options);
-      removeNotificationOnEnd(popup, installInfo.installs);
-      break; }
-    case "addon-install-started": {
-      let needsDownload = function needsDownload(aInstall) {
-        return aInstall.state != AddonManager.STATE_DOWNLOADED;
-      }
-      // If all installs have already been downloaded then there is no need to
-      // show the download progress
-      if (!installInfo.installs.some(needsDownload))
-        return;
-      notificationID = "addon-progress";
-      messageString = gNavigatorBundle.getString("addonDownloadingAndVerifying");
-      messageString = PluralForm.get(installInfo.installs.length, messageString);
-      messageString = messageString.replace("#1", installInfo.installs.length);
-      options.installs = installInfo.installs;
-      options.contentWindow = browser.contentWindow;
-      options.sourceURI = browser.currentURI;
-      options.eventCallback = (aEvent) => {
-        switch (aEvent) {
-          case "removed":
-            options.contentWindow = null;
-            options.sourceURI = null;
-            break;
-        }
-      };
-      let notification = PopupNotifications.show(browser, notificationID, messageString,
-                                                 anchorID, null, null, options);
-      notification._startTime = Date.now();
-
-      let cancelButton = document.getElementById("addon-progress-cancel");
-      cancelButton.label = gNavigatorBundle.getString("addonInstall.cancelButton.label");
-      cancelButton.accessKey = gNavigatorBundle.getString("addonInstall.cancelButton.accesskey");
-
-      let acceptButton = document.getElementById("addon-progress-accept");
-      if (Preferences.get("xpinstall.customConfirmationUI", false)) {
-        acceptButton.label = gNavigatorBundle.getString("addonInstall.acceptButton.label");
-        acceptButton.accessKey = gNavigatorBundle.getString("addonInstall.acceptButton.accesskey");
-      } else {
-        acceptButton.hidden = true;
-      }
-      break; }
-    case "addon-install-failed": {
-      // TODO This isn't terribly ideal for the multiple failure case
-      for (let install of installInfo.installs) {
-        let host;
-        try {
-          host  = options.displayURI.host;
-        } catch (e) {
-          // displayURI might be missing or 'host' might throw for non-nsStandardURL nsIURIs.
-        }
-
-        if (!host)
-          host = (install.sourceURI instanceof Ci.nsIStandardURL) &&
-                 install.sourceURI.host;
-
-        let error = (host || install.error == 0) ? "addonInstallError" : "addonLocalInstallError";
-        let args;
-        if (install.error < 0) {
-          error += install.error;
-          args = [brandShortName, install.name];
-        } else if (install.addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED) {
-          error += "Blocklisted";
-          args = [install.name];
-        } else {
-          error += "Incompatible";
-          args = [brandShortName, Services.appinfo.version, install.name];
-        }
-
-        // Add Learn More link when refusing to install an unsigned add-on
-        if (install.error == AddonManager.ERROR_SIGNEDSTATE_REQUIRED) {
-          options.learnMoreURL = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
-        }
-
-        messageString = gNavigatorBundle.getFormattedString(error, args);
-
-        PopupNotifications.show(browser, notificationID, messageString, anchorID,
-                                action, null, options);
-
-        // Can't have multiple notifications with the same ID, so stop here.
-        break;
-      }
-      this._removeProgressNotification(browser);
-      break; }
-    case "addon-install-confirmation": {
-      let showNotification = () => {
-        let height = undefined;
-
-        if (PopupNotifications.isPanelOpen) {
-          let rect = document.getElementById("addon-progress-notification").getBoundingClientRect();
-          height = rect.height;
-        }
-
-        this._removeProgressNotification(browser);
-        this.showInstallConfirmation(browser, installInfo, height);
-      };
-
-      let progressNotification = PopupNotifications.getNotification("addon-progress", browser);
-      if (progressNotification) {
-        let downloadDuration = Date.now() - progressNotification._startTime;
-        let securityDelay = Services.prefs.getIntPref("security.dialog_enable_delay") - downloadDuration;
-        if (securityDelay > 0) {
-          setTimeout(() => {
-            // The download may have been cancelled during the security delay
-            if (PopupNotifications.getNotification("addon-progress", browser))
-              showNotification();
-          }, securityDelay);
-          break;
-        }
-      }
-      showNotification();
-      break; }
-    case "addon-install-complete": {
-      let needsRestart = installInfo.installs.some(function(i) {
-        return i.addon.pendingOperations != AddonManager.PENDING_NONE;
-      });
-
-      if (needsRestart) {
-        notificationID = "addon-install-restart";
-        messageString = gNavigatorBundle.getString("addonsInstalledNeedsRestart");
-        action = {
-          label: gNavigatorBundle.getString("addonInstallRestartButton"),
-          accessKey: gNavigatorBundle.getString("addonInstallRestartButton.accesskey"),
-          callback: function() {
-            BrowserUtils.restartApplication();
-          }
-        };
-      }
-      else {
-        messageString = gNavigatorBundle.getString("addonsInstalled");
-        action = null;
-      }
-
-      messageString = PluralForm.get(installInfo.installs.length, messageString);
-      messageString = messageString.replace("#1", installInfo.installs[0].name);
-      messageString = messageString.replace("#2", installInfo.installs.length);
-      messageString = messageString.replace("#3", brandShortName);
-
-      // Remove notificaion on dismissal, since it's possible to cancel the
-      // install through the addons manager UI, making the "restart" prompt
-      // irrelevant.
-      options.removeOnDismissal = true;
-
-      PopupNotifications.show(browser, notificationID, messageString, anchorID,
-                              action, null, options);
-      break; }
-    }
-  },
-  _removeProgressNotification(aBrowser) {
-    let notification = PopupNotifications.getNotification("addon-progress", aBrowser);
-    if (notification)
-      notification.remove();
-  }
-};
-
-var LightWeightThemeWebInstaller = {
-  init: function () {
-    let mm = window.messageManager;
-    mm.addMessageListener("LightWeightThemeWebInstaller:Install", this);
-    mm.addMessageListener("LightWeightThemeWebInstaller:Preview", this);
-    mm.addMessageListener("LightWeightThemeWebInstaller:ResetPreview", this);
-  },
-
-  receiveMessage: function (message) {
-    // ignore requests from background tabs
-    if (message.target != gBrowser.selectedBrowser) {
-      return;
-    }
-
-    let data = message.data;
-
-    switch (message.name) {
-      case "LightWeightThemeWebInstaller:Install": {
-        this._installRequest(data.themeData, data.principal, data.baseURI);
-        break;
-      }
-      case "LightWeightThemeWebInstaller:Preview": {
-        this._preview(data.themeData, data.principal, data.baseURI);
-        break;
-      }
-      case "LightWeightThemeWebInstaller:ResetPreview": {
-        this._resetPreview(data && data.principal);
-        break;
-      }
-    }
-  },
-
-  handleEvent: function (event) {
-    switch (event.type) {
-      case "TabSelect": {
-        this._resetPreview();
-        break;
-      }
-    }
-  },
-
-  get _manager () {
-    let temp = {};
-    Cu.import("resource://gre/modules/LightweightThemeManager.jsm", temp);
-    delete this._manager;
-    return this._manager = temp.LightweightThemeManager;
-  },
-
-  _installRequest(dataString, principal, baseURI) {
-    // Don't allow installing off null principals.
-    if (!principal.URI) {
-      return;
-    }
-
-    let data = this._manager.parseTheme(dataString, baseURI);
-
-    if (!data) {
-      return;
-    }
-
-    // A notification bar with the option to undo is normally shown after a
-    // theme is installed.  But the discovery pane served from the url(s)
-    // below has its own toggle switch for quick undos, so don't show the
-    // notification in that case.
-    let notify = this._shouldShowUndoPrompt(principal);
-    if (this._isAllowed(principal)) {
-      this._install(data, notify);
-      return;
-    }
-
-    let allowButtonText =
-      gNavigatorBundle.getString("lwthemeInstallRequest.allowButton");
-    let allowButtonAccesskey =
-      gNavigatorBundle.getString("lwthemeInstallRequest.allowButton.accesskey");
-    let message =
-      gNavigatorBundle.getFormattedString("lwthemeInstallRequest.message",
-                                          [principal.URI.host]);
-    let buttons = [{
-      label: allowButtonText,
-      accessKey: allowButtonAccesskey,
-      callback: function () {
-        LightWeightThemeWebInstaller._install(data, notify);
-      }
-    }];
-
-    this._removePreviousNotifications();
-
-    let notificationBox = gBrowser.getNotificationBox();
-    let notificationBar =
-      notificationBox.appendNotification(message, "lwtheme-install-request", "",
-                                         notificationBox.PRIORITY_INFO_MEDIUM,
-                                         buttons);
-    notificationBar.persistence = 1;
-  },
-
-  _install: function (newLWTheme, notify) {
-    let previousLWTheme = this._manager.currentTheme;
-
-    let listener = {
-      onEnabling: function(aAddon, aRequiresRestart) {
-        if (!aRequiresRestart) {
-          return;
-        }
-
-        let messageString = gNavigatorBundle.getFormattedString("lwthemeNeedsRestart.message",
-          [aAddon.name], 1);
-
-        let action = {
-          label: gNavigatorBundle.getString("lwthemeNeedsRestart.button"),
-          accessKey: gNavigatorBundle.getString("lwthemeNeedsRestart.accesskey"),
-          callback: function () {
-            BrowserUtils.restartApplication();
-          }
-        };
-
-        let options = {
-          timeout: Date.now() + 30000
-        };
-
-        PopupNotifications.show(gBrowser.selectedBrowser, "addon-theme-change",
-                                messageString, "addons-notification-icon",
-                                action, null, options);
-      },
-
-      onEnabled: function(aAddon) {
-        if (notify) {
-          LightWeightThemeWebInstaller._postInstallNotification(newLWTheme, previousLWTheme);
-        }
-      }
-    };
-
-    AddonManager.addAddonListener(listener);
-    this._manager.currentTheme = newLWTheme;
-    AddonManager.removeAddonListener(listener);
-  },
-
-  _postInstallNotification: function (newTheme, previousTheme) {
-    function text(id) {
-      return gNavigatorBundle.getString("lwthemePostInstallNotification." + id);
-    }
-
-    let buttons = [{
-      label: text("undoButton"),
-      accessKey: text("undoButton.accesskey"),
-      callback: function () {
-        LightWeightThemeWebInstaller._manager.forgetUsedTheme(newTheme.id);
-        LightWeightThemeWebInstaller._manager.currentTheme = previousTheme;
-      }
-    }, {
-      label: text("manageButton"),
-      accessKey: text("manageButton.accesskey"),
-      callback: function () {
-        BrowserOpenAddonsMgr("addons://list/theme");
-      }
-    }];
-
-    this._removePreviousNotifications();
-
-    let notificationBox = gBrowser.getNotificationBox();
-    let notificationBar =
-      notificationBox.appendNotification(text("message"),
-                                         "lwtheme-install-notification", "",
-                                         notificationBox.PRIORITY_INFO_MEDIUM,
-                                         buttons);
-    notificationBar.persistence = 1;
-    notificationBar.timeout = Date.now() + 20000; // 20 seconds
-  },
-
-  _removePreviousNotifications: function () {
-    let box = gBrowser.getNotificationBox();
-
-    ["lwtheme-install-request",
-     "lwtheme-install-notification"].forEach(function (value) {
-        let notification = box.getNotificationWithValue(value);
-        if (notification)
-          box.removeNotification(notification);
-      });
-  },
-
-  _preview(dataString, principal, baseURI) {
-    if (!this._isAllowed(principal))
-      return;
-
-    let data = this._manager.parseTheme(dataString, baseURI);
-    if (!data)
-      return;
-
-    this._resetPreview();
-    gBrowser.tabContainer.addEventListener("TabSelect", this, false);
-    this._manager.previewTheme(data);
-  },
-
-  _resetPreview(principal) {
-    if (!this._isAllowed(principal))
-      return;
-    gBrowser.tabContainer.removeEventListener("TabSelect", this, false);
-    this._manager.resetPreview();
-  },
-
-  _isAllowed(principal) {
-    if (!principal || !principal.URI || !principal.URI.schemeIs("https")) {
-      return false;
-    }
-
-    let pm = Services.perms;
-    return pm.testPermission(principal.URI, "install") == pm.ALLOW_ACTION;
-  },
-
-  _shouldShowUndoPrompt(principal) {
-    if (!principal || !principal.URI) {
-      return true;
-    }
-
-    let prePath = principal.URI.prePath;
-    if (prePath == "https://addons.palemoon.org") {
-      return false;
-    }
-
-    return true;
-  }
-};
-
-/*
- * Listen for Lightweight Theme styling changes and update the browser's theme accordingly.
- */
-var LightweightThemeListener = {
-  _modifiedStyles: [],
-
-  init: function () {
-    XPCOMUtils.defineLazyGetter(this, "styleSheet", function() {
-      for (let i = document.styleSheets.length - 1; i >= 0; i--) {
-        let sheet = document.styleSheets[i];
-        if (sheet.href == "chrome://browser/skin/browser-lightweightTheme.css")
-          return sheet;
-      }
-      return undefined;
-    });
-
-    Services.obs.addObserver(this, "lightweight-theme-styling-update", false);
-    Services.obs.addObserver(this, "lightweight-theme-optimized", false);
-    if (document.documentElement.hasAttribute("lwtheme"))
-      this.updateStyleSheet(document.documentElement.style.backgroundImage);
-  },
-
-  uninit: function () {
-    Services.obs.removeObserver(this, "lightweight-theme-styling-update");
-    Services.obs.removeObserver(this, "lightweight-theme-optimized");
-  },
-
-  /**
-   * Append the headerImage to the background-image property of all rulesets in
-   * browser-lightweightTheme.css.
-   *
-   * @param headerImage - a string containing a CSS image for the lightweight theme header.
-   */
-  updateStyleSheet: function(headerImage) {
-    if (!this.styleSheet)
-      return;
-    this.substituteRules(this.styleSheet.cssRules, headerImage);
-  },
-
-  substituteRules: function(ruleList, headerImage, existingStyleRulesModified = 0) {
-    let styleRulesModified = 0;
-    for (let i = 0; i < ruleList.length; i++) {
-      let rule = ruleList[i];
-      if (rule instanceof Ci.nsIDOMCSSGroupingRule) {
-        // Add the number of modified sub-rules to the modified count
-        styleRulesModified += this.substituteRules(rule.cssRules, headerImage, existingStyleRulesModified + styleRulesModified);
-      } else if (rule instanceof Ci.nsIDOMCSSStyleRule) {
-        if (!rule.style.backgroundImage)
-          continue;
-        let modifiedIndex = existingStyleRulesModified + styleRulesModified;
-        if (!this._modifiedStyles[modifiedIndex])
-          this._modifiedStyles[modifiedIndex] = { backgroundImage: rule.style.backgroundImage };
-
-        rule.style.backgroundImage = this._modifiedStyles[modifiedIndex].backgroundImage + ", " + headerImage;
-        styleRulesModified++;
-      } else {
-        Cu.reportError("Unsupported rule encountered");
-      }
-    }
-    return styleRulesModified;
-  },
-
-  // nsIObserver
-  observe: function (aSubject, aTopic, aData) {
-    if ((aTopic != "lightweight-theme-styling-update" && aTopic != "lightweight-theme-optimized") ||
-          !this.styleSheet)
-      return;
-
-    if (aTopic == "lightweight-theme-optimized" && aSubject != window)
-      return;
-
-    let themeData = JSON.parse(aData);
-    if (!themeData)
-      return;
-    this.updateStyleSheet("url(" + themeData.headerURL + ")");
-  },
-};