Rename Basilisk's webextensions component directory to better reflect what it is. Also, add an Application level configure option to disable webextensions

1 files changed, 0 insertions, 1093 deletions

diff --git a/browser/components/extensions/ext-tabs.js b/browser/components/extensions/ext-tabs.js
deleted file mode 100644
index bb575aaab..000000000
--- a/browser/components/extensions/ext-tabs.js
+++ /dev/null
@@ -1,1093 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-XPCOMUtils.defineLazyServiceGetter(this, "aboutNewTabService",
-                                   "@mozilla.org/browser/aboutnewtab-service;1",
-                                   "nsIAboutNewTabService");
-
-XPCOMUtils.defineLazyModuleGetter(this, "MatchPattern",
-                                  "resource://gre/modules/MatchPattern.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PromiseUtils",
-                                  "resource://gre/modules/PromiseUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
-                                  "resource://gre/modules/Services.jsm");
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-var {
-  EventManager,
-  ignoreEvent,
-} = ExtensionUtils;
-
-// This function is pretty tightly tied to Extension.jsm.
-// Its job is to fill in the |tab| property of the sender.
-function getSender(extension, target, sender) {
-  if ("tabId" in sender) {
-    // The message came from an ExtensionContext. In that case, it should
-    // include a tabId property (which is filled in by the page-open
-    // listener below).
-    let tab = TabManager.getTab(sender.tabId, null, null);
-    delete sender.tabId;
-    if (tab) {
-      sender.tab = TabManager.convert(extension, tab);
-      return;
-    }
-  }
-  if (target instanceof Ci.nsIDOMXULElement) {
-    // If the message was sent from a content script to a <browser> element,
-    // then we can just get the `tab` from `target`.
-    let tabbrowser = target.ownerGlobal.gBrowser;
-    if (tabbrowser) {
-      let tab = tabbrowser.getTabForBrowser(target);
-
-      // `tab` can be `undefined`, e.g. for extension popups. This condition is
-      // reached if `getSender` is called for a popup without a valid `tabId`.
-      if (tab) {
-        sender.tab = TabManager.convert(extension, tab);
-      }
-    }
-  }
-}
-
-// Used by Extension.jsm
-global.tabGetSender = getSender;
-
-/* eslint-disable mozilla/balanced-listeners */
-
-extensions.on("page-shutdown", (type, context) => {
-  if (context.viewType == "tab") {
-    if (context.extension.id !== context.xulBrowser.contentPrincipal.addonId) {
-      // Only close extension tabs.
-      // This check prevents about:addons from closing when it contains a
-      // WebExtension as an embedded inline options page.
-      return;
-    }
-    let {gBrowser} = context.xulBrowser.ownerGlobal;
-    if (gBrowser) {
-      let tab = gBrowser.getTabForBrowser(context.xulBrowser);
-      if (tab) {
-        gBrowser.removeTab(tab);
-      }
-    }
-  }
-});
-
-extensions.on("fill-browser-data", (type, browser, data) => {
-  data.tabId = browser ? TabManager.getBrowserId(browser) : -1;
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-global.currentWindow = function(context) {
-  let {xulWindow} = context;
-  if (xulWindow && context.viewType != "background") {
-    return xulWindow;
-  }
-  return WindowManager.topWindow;
-};
-
-let tabListener = {
-  init() {
-    if (this.initialized) {
-      return;
-    }
-
-    this.adoptedTabs = new WeakMap();
-
-    this.handleWindowOpen = this.handleWindowOpen.bind(this);
-    this.handleWindowClose = this.handleWindowClose.bind(this);
-
-    AllWindowEvents.addListener("TabClose", this);
-    AllWindowEvents.addListener("TabOpen", this);
-    WindowListManager.addOpenListener(this.handleWindowOpen);
-    WindowListManager.addCloseListener(this.handleWindowClose);
-
-    EventEmitter.decorate(this);
-
-    this.initialized = true;
-  },
-
-  handleEvent(event) {
-    switch (event.type) {
-      case "TabOpen":
-        if (event.detail.adoptedTab) {
-          this.adoptedTabs.set(event.detail.adoptedTab, event.target);
-        }
-
-        // We need to delay sending this event until the next tick, since the
-        // tab does not have its final index when the TabOpen event is dispatched.
-        Promise.resolve().then(() => {
-          if (event.detail.adoptedTab) {
-            this.emitAttached(event.originalTarget);
-          } else {
-            this.emitCreated(event.originalTarget);
-          }
-        });
-        break;
-
-      case "TabClose":
-        let tab = event.originalTarget;
-
-        if (event.detail.adoptedBy) {
-          this.emitDetached(tab, event.detail.adoptedBy);
-        } else {
-          this.emitRemoved(tab, false);
-        }
-        break;
-    }
-  },
-
-  handleWindowOpen(window) {
-    if (window.arguments[0] instanceof window.XULElement) {
-      // If the first window argument is a XUL element, it means the
-      // window is about to adopt a tab from another window to replace its
-      // initial tab.
-      //
-      // Note that this event handler depends on running before the
-      // delayed startup code in browser.js, which is currently triggered
-      // by the first MozAfterPaint event. That code handles finally
-      // adopting the tab, and clears it from the arguments list in the
-      // process, so if we run later than it, we're too late.
-      let tab = window.arguments[0];
-      this.adoptedTabs.set(tab, window.gBrowser.tabs[0]);
-
-      // We need to be sure to fire this event after the onDetached event
-      // for the original tab.
-      let listener = (event, details) => {
-        if (details.tab == tab) {
-          this.off("tab-detached", listener);
-
-          Promise.resolve().then(() => {
-            this.emitAttached(details.adoptedBy);
-          });
-        }
-      };
-
-      this.on("tab-detached", listener);
-    } else {
-      for (let tab of window.gBrowser.tabs) {
-        this.emitCreated(tab);
-      }
-    }
-  },
-
-  handleWindowClose(window) {
-    for (let tab of window.gBrowser.tabs) {
-      if (this.adoptedTabs.has(tab)) {
-        this.emitDetached(tab, this.adoptedTabs.get(tab));
-      } else {
-        this.emitRemoved(tab, true);
-      }
-    }
-  },
-
-  emitAttached(tab) {
-    let newWindowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    this.emit("tab-attached", {tab, tabId, newWindowId, newPosition: tab._tPos});
-  },
-
-  emitDetached(tab, adoptedBy) {
-    let oldWindowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    this.emit("tab-detached", {tab, adoptedBy, tabId, oldWindowId, oldPosition: tab._tPos});
-  },
-
-  emitCreated(tab) {
-    this.emit("tab-created", {tab});
-  },
-
-  emitRemoved(tab, isWindowClosing) {
-    let windowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    // When addons run in-process, `window.close()` is synchronous. Most other
-    // addon-invoked calls are asynchronous since they go through a proxy
-    // context via the message manager. This includes event registrations such
-    // as `tabs.onRemoved.addListener`.
-    // So, even if `window.close()` were to be called (in-process) after calling
-    // `tabs.onRemoved.addListener`, then the tab would be closed before the
-    // event listener is registered. To make sure that the event listener is
-    // notified, we dispatch `tabs.onRemoved` asynchronously.
-    Services.tm.mainThread.dispatch(() => {
-      this.emit("tab-removed", {tab, tabId, windowId, isWindowClosing});
-    }, Ci.nsIThread.DISPATCH_NORMAL);
-  },
-
-  tabReadyInitialized: false,
-  tabReadyPromises: new WeakMap(),
-  initializingTabs: new WeakSet(),
-
-  initTabReady() {
-    if (!this.tabReadyInitialized) {
-      AllWindowEvents.addListener("progress", this);
-
-      this.tabReadyInitialized = true;
-    }
-  },
-
-  onLocationChange(browser, webProgress, request, locationURI, flags) {
-    if (webProgress.isTopLevel) {
-      let gBrowser = browser.ownerGlobal.gBrowser;
-      let tab = gBrowser.getTabForBrowser(browser);
-
-      // Now we are certain that the first page in the tab was loaded.
-      this.initializingTabs.delete(tab);
-
-      // browser.innerWindowID is now set, resolve the promises if any.
-      let deferred = this.tabReadyPromises.get(tab);
-      if (deferred) {
-        deferred.resolve(tab);
-        this.tabReadyPromises.delete(tab);
-      }
-    }
-  },
-
-  /**
-   * Returns a promise that resolves when the tab is ready.
-   * Tabs created via the `tabs.create` method are "ready" once the location
-   * changes to the requested URL. Other tabs are assumed to be ready once their
-   * inner window ID is known.
-   *
-   * @param {XULElement} tab The <tab> element.
-   * @returns {Promise} Resolves with the given tab once ready.
-   */
-  awaitTabReady(tab) {
-    let deferred = this.tabReadyPromises.get(tab);
-    if (!deferred) {
-      deferred = PromiseUtils.defer();
-      if (!this.initializingTabs.has(tab) && tab.linkedBrowser.innerWindowID) {
-        deferred.resolve(tab);
-      } else {
-        this.initTabReady();
-        this.tabReadyPromises.set(tab, deferred);
-      }
-    }
-    return deferred.promise;
-  },
-};
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("startup", () => {
-  tabListener.init();
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("tabs", "addon_parent", context => {
-  let {extension} = context;
-  let self = {
-    tabs: {
-      onActivated: new WindowEventManager(context, "tabs.onActivated", "TabSelect", (fire, event) => {
-        let tab = event.originalTarget;
-        let tabId = TabManager.getId(tab);
-        let windowId = WindowManager.getId(tab.ownerGlobal);
-        fire({tabId, windowId});
-      }).api(),
-
-      onCreated: new EventManager(context, "tabs.onCreated", fire => {
-        let listener = (eventName, event) => {
-          fire(TabManager.convert(extension, event.tab));
-        };
-
-        tabListener.on("tab-created", listener);
-        return () => {
-          tabListener.off("tab-created", listener);
-        };
-      }).api(),
-
-      /**
-       * Since multiple tabs currently can't be highlighted, onHighlighted
-       * essentially acts an alias for self.tabs.onActivated but returns
-       * the tabId in an array to match the API.
-       * @see  https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/Tabs/onHighlighted
-      */
-      onHighlighted: new WindowEventManager(context, "tabs.onHighlighted", "TabSelect", (fire, event) => {
-        let tab = event.originalTarget;
-        let tabIds = [TabManager.getId(tab)];
-        let windowId = WindowManager.getId(tab.ownerGlobal);
-        fire({tabIds, windowId});
-      }).api(),
-
-      onAttached: new EventManager(context, "tabs.onAttached", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {newWindowId: event.newWindowId, newPosition: event.newPosition});
-        };
-
-        tabListener.on("tab-attached", listener);
-        return () => {
-          tabListener.off("tab-attached", listener);
-        };
-      }).api(),
-
-      onDetached: new EventManager(context, "tabs.onDetached", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {oldWindowId: event.oldWindowId, oldPosition: event.oldPosition});
-        };
-
-        tabListener.on("tab-detached", listener);
-        return () => {
-          tabListener.off("tab-detached", listener);
-        };
-      }).api(),
-
-      onRemoved: new EventManager(context, "tabs.onRemoved", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {windowId: event.windowId, isWindowClosing: event.isWindowClosing});
-        };
-
-        tabListener.on("tab-removed", listener);
-        return () => {
-          tabListener.off("tab-removed", listener);
-        };
-      }).api(),
-
-      onReplaced: ignoreEvent(context, "tabs.onReplaced"),
-
-      onMoved: new EventManager(context, "tabs.onMoved", fire => {
-        // There are certain circumstances where we need to ignore a move event.
-        //
-        // Namely, the first time the tab is moved after it's created, we need
-        // to report the final position as the initial position in the tab's
-        // onAttached or onCreated event. This is because most tabs are inserted
-        // in a temporary location and then moved after the TabOpen event fires,
-        // which generates a TabOpen event followed by a TabMove event, which
-        // does not match the contract of our API.
-        let ignoreNextMove = new WeakSet();
-
-        let openListener = event => {
-          ignoreNextMove.add(event.target);
-          // Remove the tab from the set on the next tick, since it will already
-          // have been moved by then.
-          Promise.resolve().then(() => {
-            ignoreNextMove.delete(event.target);
-          });
-        };
-
-        let moveListener = event => {
-          let tab = event.originalTarget;
-
-          if (ignoreNextMove.has(tab)) {
-            ignoreNextMove.delete(tab);
-            return;
-          }
-
-          fire(TabManager.getId(tab), {
-            windowId: WindowManager.getId(tab.ownerGlobal),
-            fromIndex: event.detail,
-            toIndex: tab._tPos,
-          });
-        };
-
-        AllWindowEvents.addListener("TabMove", moveListener);
-        AllWindowEvents.addListener("TabOpen", openListener);
-        return () => {
-          AllWindowEvents.removeListener("TabMove", moveListener);
-          AllWindowEvents.removeListener("TabOpen", openListener);
-        };
-      }).api(),
-
-      onUpdated: new EventManager(context, "tabs.onUpdated", fire => {
-        function sanitize(extension, changeInfo) {
-          let result = {};
-          let nonempty = false;
-          for (let prop in changeInfo) {
-            if ((prop != "favIconUrl" && prop != "url") || extension.hasPermission("tabs")) {
-              nonempty = true;
-              result[prop] = changeInfo[prop];
-            }
-          }
-          return [nonempty, result];
-        }
-
-        let fireForBrowser = (browser, changed) => {
-          let [needed, changeInfo] = sanitize(extension, changed);
-          if (needed) {
-            let gBrowser = browser.ownerGlobal.gBrowser;
-            let tabElem = gBrowser.getTabForBrowser(browser);
-
-            let tab = TabManager.convert(extension, tabElem);
-            fire(tab.id, changeInfo, tab);
-          }
-        };
-
-        let listener = event => {
-          let needed = [];
-          if (event.type == "TabAttrModified") {
-            let changed = event.detail.changed;
-            if (changed.includes("image")) {
-              needed.push("favIconUrl");
-            }
-            if (changed.includes("muted")) {
-              needed.push("mutedInfo");
-            }
-            if (changed.includes("soundplaying")) {
-              needed.push("audible");
-            }
-          } else if (event.type == "TabPinned") {
-            needed.push("pinned");
-          } else if (event.type == "TabUnpinned") {
-            needed.push("pinned");
-          }
-
-          if (needed.length && !extension.hasPermission("tabs")) {
-            needed = needed.filter(attr => attr != "url" && attr != "favIconUrl");
-          }
-
-          if (needed.length) {
-            let tab = TabManager.convert(extension, event.originalTarget);
-
-            let changeInfo = {};
-            for (let prop of needed) {
-              changeInfo[prop] = tab[prop];
-            }
-            fire(tab.id, changeInfo, tab);
-          }
-        };
-        let progressListener = {
-          onStateChange(browser, webProgress, request, stateFlags, statusCode) {
-            if (!webProgress.isTopLevel) {
-              return;
-            }
-
-            let status;
-            if (stateFlags & Ci.nsIWebProgressListener.STATE_IS_WINDOW) {
-              if (stateFlags & Ci.nsIWebProgressListener.STATE_START) {
-                status = "loading";
-              } else if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
-                status = "complete";
-              }
-            } else if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP &&
-                       statusCode == Cr.NS_BINDING_ABORTED) {
-              status = "complete";
-            }
-
-            fireForBrowser(browser, {status});
-          },
-
-          onLocationChange(browser, webProgress, request, locationURI, flags) {
-            if (!webProgress.isTopLevel) {
-              return;
-            }
-
-            fireForBrowser(browser, {
-              status: webProgress.isLoadingDocument ? "loading" : "complete",
-              url: locationURI.spec,
-            });
-          },
-        };
-
-        AllWindowEvents.addListener("progress", progressListener);
-        AllWindowEvents.addListener("TabAttrModified", listener);
-        AllWindowEvents.addListener("TabPinned", listener);
-        AllWindowEvents.addListener("TabUnpinned", listener);
-
-        return () => {
-          AllWindowEvents.removeListener("progress", progressListener);
-          AllWindowEvents.removeListener("TabAttrModified", listener);
-          AllWindowEvents.removeListener("TabPinned", listener);
-          AllWindowEvents.removeListener("TabUnpinned", listener);
-        };
-      }).api(),
-
-      create: function(createProperties) {
-        return new Promise((resolve, reject) => {
-          let window = createProperties.windowId !== null ?
-            WindowManager.getWindow(createProperties.windowId, context) :
-            WindowManager.topWindow;
-          if (!window.gBrowser) {
-            let obs = (finishedWindow, topic, data) => {
-              if (finishedWindow != window) {
-                return;
-              }
-              Services.obs.removeObserver(obs, "browser-delayed-startup-finished");
-              resolve(window);
-            };
-            Services.obs.addObserver(obs, "browser-delayed-startup-finished", false);
-          } else {
-            resolve(window);
-          }
-        }).then(window => {
-          let url;
-
-          if (createProperties.url !== null) {
-            url = context.uri.resolve(createProperties.url);
-
-            if (!context.checkLoadURL(url, {dontReportErrors: true})) {
-              return Promise.reject({message: `Illegal URL: ${url}`});
-            }
-          }
-
-          if (createProperties.cookieStoreId && !extension.hasPermission("cookies")) {
-            return Promise.reject({message: `No permission for cookieStoreId: ${createProperties.cookieStoreId}`});
-          }
-
-          let options = {};
-          if (createProperties.cookieStoreId) {
-            if (!global.isValidCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal cookieStoreId: ${createProperties.cookieStoreId}`});
-            }
-
-            let privateWindow = PrivateBrowsingUtils.isBrowserPrivate(window.gBrowser);
-            if (privateWindow && !global.isPrivateCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal to set non-private cookieStorageId in a private window`});
-            }
-
-            if (!privateWindow && global.isPrivateCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal to set private cookieStorageId in a non-private window`});
-            }
-
-            if (global.isContainerCookieStoreId(createProperties.cookieStoreId)) {
-              let containerId = global.getContainerForCookieStoreId(createProperties.cookieStoreId);
-              if (!containerId) {
-                return Promise.reject({message: `No cookie store exists with ID ${createProperties.cookieStoreId}`});
-              }
-
-              options.userContextId = containerId;
-            }
-          }
-
-          tabListener.initTabReady();
-          let tab = window.gBrowser.addTab(url || window.BROWSER_NEW_TAB_URL, options);
-
-          let active = true;
-          if (createProperties.active !== null) {
-            active = createProperties.active;
-          }
-          if (active) {
-            window.gBrowser.selectedTab = tab;
-          }
-
-          if (createProperties.index !== null) {
-            window.gBrowser.moveTabTo(tab, createProperties.index);
-          }
-
-          if (createProperties.pinned) {
-            window.gBrowser.pinTab(tab);
-          }
-
-          if (createProperties.url && !createProperties.url.startsWith("about:")) {
-            // We can't wait for a location change event for about:newtab,
-            // since it may be pre-rendered, in which case its initial
-            // location change event has already fired.
-
-            // Mark the tab as initializing, so that operations like
-            // `executeScript` wait until the requested URL is loaded in
-            // the tab before dispatching messages to the inner window
-            // that contains the URL we're attempting to load.
-            tabListener.initializingTabs.add(tab);
-          }
-
-          return TabManager.convert(extension, tab);
-        });
-      },
-
-      remove: function(tabs) {
-        if (!Array.isArray(tabs)) {
-          tabs = [tabs];
-        }
-
-        for (let tabId of tabs) {
-          let tab = TabManager.getTab(tabId, context);
-          tab.ownerGlobal.gBrowser.removeTab(tab);
-        }
-
-        return Promise.resolve();
-      },
-
-      update: function(tabId, updateProperties) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let tabbrowser = tab.ownerGlobal.gBrowser;
-
-        if (updateProperties.url !== null) {
-          let url = context.uri.resolve(updateProperties.url);
-
-          if (!context.checkLoadURL(url, {dontReportErrors: true})) {
-            return Promise.reject({message: `Illegal URL: ${url}`});
-          }
-
-          tab.linkedBrowser.loadURI(url);
-        }
-
-        if (updateProperties.active !== null) {
-          if (updateProperties.active) {
-            tabbrowser.selectedTab = tab;
-          } else {
-            // Not sure what to do here? Which tab should we select?
-          }
-        }
-        if (updateProperties.muted !== null) {
-          if (tab.muted != updateProperties.muted) {
-            tab.toggleMuteAudio(extension.uuid);
-          }
-        }
-        if (updateProperties.pinned !== null) {
-          if (updateProperties.pinned) {
-            tabbrowser.pinTab(tab);
-          } else {
-            tabbrowser.unpinTab(tab);
-          }
-        }
-        // FIXME: highlighted/selected, openerTabId
-
-        return Promise.resolve(TabManager.convert(extension, tab));
-      },
-
-      reload: function(tabId, reloadProperties) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let flags = Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
-        if (reloadProperties && reloadProperties.bypassCache) {
-          flags |= Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE;
-        }
-        tab.linkedBrowser.reloadWithFlags(flags);
-
-        return Promise.resolve();
-      },
-
-      get: function(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-
-        return Promise.resolve(TabManager.convert(extension, tab));
-      },
-
-      getCurrent() {
-        let tab;
-        if (context.tabId) {
-          tab = TabManager.convert(extension, TabManager.getTab(context.tabId, context));
-        }
-        return Promise.resolve(tab);
-      },
-
-      query: function(queryInfo) {
-        let pattern = null;
-        if (queryInfo.url !== null) {
-          if (!extension.hasPermission("tabs")) {
-            return Promise.reject({message: 'The "tabs" permission is required to use the query API with the "url" parameter'});
-          }
-
-          pattern = new MatchPattern(queryInfo.url);
-        }
-
-        function matches(tab) {
-          let props = ["active", "pinned", "highlighted", "status", "title", "index"];
-          for (let prop of props) {
-            if (queryInfo[prop] !== null && queryInfo[prop] != tab[prop]) {
-              return false;
-            }
-          }
-
-          if (queryInfo.audible !== null) {
-            if (queryInfo.audible != tab.audible) {
-              return false;
-            }
-          }
-
-          if (queryInfo.muted !== null) {
-            if (queryInfo.muted != tab.mutedInfo.muted) {
-              return false;
-            }
-          }
-
-          if (queryInfo.cookieStoreId !== null &&
-              tab.cookieStoreId != queryInfo.cookieStoreId) {
-            return false;
-          }
-
-          if (pattern && !pattern.matches(Services.io.newURI(tab.url, null, null))) {
-            return false;
-          }
-
-          return true;
-        }
-
-        let result = [];
-        for (let window of WindowListManager.browserWindows()) {
-          let lastFocused = window === WindowManager.topWindow;
-          if (queryInfo.lastFocusedWindow !== null && queryInfo.lastFocusedWindow !== lastFocused) {
-            continue;
-          }
-
-          let windowType = WindowManager.windowType(window);
-          if (queryInfo.windowType !== null && queryInfo.windowType !== windowType) {
-            continue;
-          }
-
-          if (queryInfo.windowId !== null) {
-            if (queryInfo.windowId === WindowManager.WINDOW_ID_CURRENT) {
-              if (currentWindow(context) !== window) {
-                continue;
-              }
-            } else if (queryInfo.windowId !== WindowManager.getId(window)) {
-              continue;
-            }
-          }
-
-          if (queryInfo.currentWindow !== null) {
-            let eq = window === currentWindow(context);
-            if (queryInfo.currentWindow != eq) {
-              continue;
-            }
-          }
-
-          let tabs = TabManager.for(extension).getTabs(window);
-          for (let tab of tabs) {
-            if (matches(tab)) {
-              result.push(tab);
-            }
-          }
-        }
-        return Promise.resolve(result);
-      },
-
-      captureVisibleTab: function(windowId, options) {
-        if (!extension.hasPermission("<all_urls>")) {
-          return Promise.reject({message: "The <all_urls> permission is required to use the captureVisibleTab API"});
-        }
-
-        let window = windowId == null ?
-          WindowManager.topWindow :
-          WindowManager.getWindow(windowId, context);
-
-        let tab = window.gBrowser.selectedTab;
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {
-            innerWindowID: browser.innerWindowID,
-          };
-
-          if (!options) {
-            options = {};
-          }
-          if (options.format == null) {
-            options.format = "png";
-          }
-          if (options.quality == null) {
-            options.quality = 92;
-          }
-
-          let message = {
-            options,
-            width: browser.clientWidth,
-            height: browser.clientHeight,
-          };
-
-          return context.sendMessage(browser.messageManager, "Extension:Capture",
-                                     message, {recipient});
-        });
-      },
-
-      detectLanguage: function(tabId) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {innerWindowID: browser.innerWindowID};
-
-          return context.sendMessage(browser.messageManager, "Extension:DetectLanguage",
-                                     {}, {recipient});
-        });
-      },
-
-      // Used to executeScript, insertCSS and removeCSS.
-      _execute: function(tabId, details, kind, method) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let options = {
-          js: [],
-          css: [],
-          remove_css: method == "removeCSS",
-        };
-
-        // We require a `code` or a `file` property, but we can't accept both.
-        if ((details.code === null) == (details.file === null)) {
-          return Promise.reject({message: `${method} requires either a 'code' or a 'file' property, but not both`});
-        }
-
-        if (details.frameId !== null && details.allFrames) {
-          return Promise.reject({message: `'frameId' and 'allFrames' are mutually exclusive`});
-        }
-
-        if (TabManager.for(extension).hasActiveTabPermission(tab)) {
-          // If we have the "activeTab" permission for this tab, ignore
-          // the host whitelist.
-          options.matchesHost = ["<all_urls>"];
-        } else {
-          options.matchesHost = extension.whiteListedHosts.serialize();
-        }
-
-        if (details.code !== null) {
-          options[kind + "Code"] = details.code;
-        }
-        if (details.file !== null) {
-          let url = context.uri.resolve(details.file);
-          if (!extension.isExtensionURL(url)) {
-            return Promise.reject({message: "Files to be injected must be within the extension"});
-          }
-          options[kind].push(url);
-        }
-        if (details.allFrames) {
-          options.all_frames = details.allFrames;
-        }
-        if (details.frameId !== null) {
-          options.frame_id = details.frameId;
-        }
-        if (details.matchAboutBlank) {
-          options.match_about_blank = details.matchAboutBlank;
-        }
-        if (details.runAt !== null) {
-          options.run_at = details.runAt;
-        } else {
-          options.run_at = "document_idle";
-        }
-
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {
-            innerWindowID: browser.innerWindowID,
-          };
-
-          return context.sendMessage(browser.messageManager, "Extension:Execute", {options}, {recipient});
-        });
-      },
-
-      executeScript: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "js", "executeScript");
-      },
-
-      insertCSS: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "css", "insertCSS").then(() => {});
-      },
-
-      removeCSS: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "css", "removeCSS").then(() => {});
-      },
-
-      move: function(tabIds, moveProperties) {
-        let index = moveProperties.index;
-        let tabsMoved = [];
-        if (!Array.isArray(tabIds)) {
-          tabIds = [tabIds];
-        }
-
-        let destinationWindow = null;
-        if (moveProperties.windowId !== null) {
-          destinationWindow = WindowManager.getWindow(moveProperties.windowId, context);
-          // Fail on an invalid window.
-          if (!destinationWindow) {
-            return Promise.reject({message: `Invalid window ID: ${moveProperties.windowId}`});
-          }
-        }
-
-        /*
-          Indexes are maintained on a per window basis so that a call to
-            move([tabA, tabB], {index: 0})
-              -> tabA to 0, tabB to 1 if tabA and tabB are in the same window
-            move([tabA, tabB], {index: 0})
-              -> tabA to 0, tabB to 0 if tabA and tabB are in different windows
-        */
-        let indexMap = new Map();
-
-        let tabs = tabIds.map(tabId => TabManager.getTab(tabId, context));
-        for (let tab of tabs) {
-          // If the window is not specified, use the window from the tab.
-          let window = destinationWindow || tab.ownerGlobal;
-          let gBrowser = window.gBrowser;
-
-          let insertionPoint = indexMap.get(window) || index;
-          // If the index is -1 it should go to the end of the tabs.
-          if (insertionPoint == -1) {
-            insertionPoint = gBrowser.tabs.length;
-          }
-
-          // We can only move pinned tabs to a point within, or just after,
-          // the current set of pinned tabs. Unpinned tabs, likewise, can only
-          // be moved to a position after the current set of pinned tabs.
-          // Attempts to move a tab to an illegal position are ignored.
-          let numPinned = gBrowser._numPinnedTabs;
-          let ok = tab.pinned ? insertionPoint <= numPinned : insertionPoint >= numPinned;
-          if (!ok) {
-            continue;
-          }
-
-          indexMap.set(window, insertionPoint + 1);
-
-          if (tab.ownerGlobal != window) {
-            // If the window we are moving the tab in is different, then move the tab
-            // to the new window.
-            tab = gBrowser.adoptTab(tab, insertionPoint, false);
-          } else {
-            // If the window we are moving is the same, just move the tab.
-            gBrowser.moveTabTo(tab, insertionPoint);
-          }
-          tabsMoved.push(tab);
-        }
-
-        return Promise.resolve(tabsMoved.map(tab => TabManager.convert(extension, tab)));
-      },
-
-      duplicate: function(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-
-        let gBrowser = tab.ownerGlobal.gBrowser;
-        let newTab = gBrowser.duplicateTab(tab);
-
-        return new Promise(resolve => {
-          // We need to use SSTabRestoring because any attributes set before
-          // are ignored. SSTabRestored is too late and results in a jump in
-          // the UI. See http://bit.ly/session-store-api for more information.
-          newTab.addEventListener("SSTabRestoring", function listener() {
-            // As the tab is restoring, move it to the correct position.
-            newTab.removeEventListener("SSTabRestoring", listener);
-            // Pinned tabs that are duplicated are inserted
-            // after the existing pinned tab and pinned.
-            if (tab.pinned) {
-              gBrowser.pinTab(newTab);
-            }
-            gBrowser.moveTabTo(newTab, tab._tPos + 1);
-          });
-
-          newTab.addEventListener("SSTabRestored", function listener() {
-            // Once it has been restored, select it and return the promise.
-            newTab.removeEventListener("SSTabRestored", listener);
-            gBrowser.selectedTab = newTab;
-            return resolve(TabManager.convert(extension, newTab));
-          });
-        });
-      },
-
-      getZoom(tabId) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {ZoomManager} = tab.ownerGlobal;
-        let zoom = ZoomManager.getZoomForBrowser(tab.linkedBrowser);
-
-        return Promise.resolve(zoom);
-      },
-
-      setZoom(tabId, zoom) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {FullZoom, ZoomManager} = tab.ownerGlobal;
-
-        if (zoom === 0) {
-          // A value of zero means use the default zoom factor.
-          return FullZoom.reset(tab.linkedBrowser);
-        } else if (zoom >= ZoomManager.MIN && zoom <= ZoomManager.MAX) {
-          FullZoom.setZoom(zoom, tab.linkedBrowser);
-        } else {
-          return Promise.reject({
-            message: `Zoom value ${zoom} out of range (must be between ${ZoomManager.MIN} and ${ZoomManager.MAX})`,
-          });
-        }
-
-        return Promise.resolve();
-      },
-
-      _getZoomSettings(tabId) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {FullZoom} = tab.ownerGlobal;
-
-        return {
-          mode: "automatic",
-          scope: FullZoom.siteSpecific ? "per-origin" : "per-tab",
-          defaultZoomFactor: 1,
-        };
-      },
-
-      getZoomSettings(tabId) {
-        return Promise.resolve(this._getZoomSettings(tabId));
-      },
-
-      setZoomSettings(tabId, settings) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let currentSettings = this._getZoomSettings(tab.id);
-
-        if (!Object.keys(settings).every(key => settings[key] === currentSettings[key])) {
-          return Promise.reject(`Unsupported zoom settings: ${JSON.stringify(settings)}`);
-        }
-        return Promise.resolve();
-      },
-
-      onZoomChange: new EventManager(context, "tabs.onZoomChange", fire => {
-        let getZoomLevel = browser => {
-          let {ZoomManager} = browser.ownerGlobal;
-
-          return ZoomManager.getZoomForBrowser(browser);
-        };
-
-        // Stores the last known zoom level for each tab's browser.
-        // WeakMap[<browser> -> number]
-        let zoomLevels = new WeakMap();
-
-        // Store the zoom level for all existing tabs.
-        for (let window of WindowListManager.browserWindows()) {
-          for (let tab of window.gBrowser.tabs) {
-            let browser = tab.linkedBrowser;
-            zoomLevels.set(browser, getZoomLevel(browser));
-          }
-        }
-
-        let tabCreated = (eventName, event) => {
-          let browser = event.tab.linkedBrowser;
-          zoomLevels.set(browser, getZoomLevel(browser));
-        };
-
-
-        let zoomListener = event => {
-          let browser = event.originalTarget;
-
-          // For non-remote browsers, this event is dispatched on the document
-          // rather than on the <browser>.
-          if (browser instanceof Ci.nsIDOMDocument) {
-            browser = browser.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
-                             .getInterface(Ci.nsIDocShell)
-                             .chromeEventHandler;
-          }
-
-          let {gBrowser} = browser.ownerGlobal;
-          let tab = gBrowser.getTabForBrowser(browser);
-          if (!tab) {
-            // We only care about zoom events in the top-level browser of a tab.
-            return;
-          }
-
-          let oldZoomFactor = zoomLevels.get(browser);
-          let newZoomFactor = getZoomLevel(browser);
-
-          if (oldZoomFactor != newZoomFactor) {
-            zoomLevels.set(browser, newZoomFactor);
-
-            let tabId = TabManager.getId(tab);
-            fire({
-              tabId,
-              oldZoomFactor,
-              newZoomFactor,
-              zoomSettings: self.tabs._getZoomSettings(tabId),
-            });
-          }
-        };
-
-        tabListener.on("tab-attached", tabCreated);
-        tabListener.on("tab-created", tabCreated);
-
-        AllWindowEvents.addListener("FullZoomChange", zoomListener);
-        AllWindowEvents.addListener("TextZoomChange", zoomListener);
-        return () => {
-          tabListener.off("tab-attached", tabCreated);
-          tabListener.off("tab-created", tabCreated);
-
-          AllWindowEvents.removeListener("FullZoomChange", zoomListener);
-          AllWindowEvents.removeListener("TextZoomChange", zoomListener);
-        };
-      }).api(),
-    },
-  };
-  return self;
-});