[filesapp] Update SWA file_manager_fake.js helpers

 Add launcher.launchFileManager()
  - move this part out of file_manager.js changes in CL:2500642
 Add ready() handler to read load time data
  - move this part out of file_manager.js changes in CL:2500642
 Add getVolumeManager() helper
  - to match this new helper, which was added in CL:2534551 for
    moving VolumeManager into JS modules
 Re-position the various background fake classes
  - move them so they are adjacent in the code

Tbr: alex
Bug: 1113981
Change-Id: Ia301098b5e0a357d69b7ee5e89560f7cc6b8210f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2539255Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Auto-Submit: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827657}

chromeos/components/file_manager/resources/file_manager_fakes.js

@@ -137,70 +137,144 @@ window.chrome.metricsPrivate = {
   recordValue: (metricName, value) => {},
 };
 
-window.DriveSyncHandler = class extends EventTarget {
-  /**
-   * Returns the completed event name.
-   * @return {string}
-   */
-  getCompletedEventName() {}
+window.BackgroundWindowSWA = class {
+  constructor() {
+    /**
+     * @type {!FileBrowserBackground|!FileBrowserBackgroundFull}
+     */
+    this.background = new FileBrowserBackgroundFull();
 
-  /**
-   * Returns whether the Drive sync is currently suppressed or not.
-   * @return {boolean}
-   */
-  isSyncSuppressed() {}
+    /**
+     * @type {!Object}
+     */
+    this.launcher = {
+      /** @param {Object=} appState App state. */
+      launchFileManager(appState) {
+        window.fileManagerLaunchNewWindow(appState);
+      },
+    };
+
+    /**
+     * @type {!DriveSyncHandler}
+     */
+    this.driveSyncHandler = new DriveSyncHandler();
+  }
 
   /**
-   * Shows a notification that Drive sync is disabled on cellular networks.
+   * @param {Window} window
    */
-  showDisabledMobileSyncNotification() {}
+  registerDialog(window) {}
+}
+
+window.FileBrowserBackground = class {
+  constructor() {
+    /**
+     * Dialogs
+     * @type {!Object<!Window>}
+     */
+    this.dialogs;
+
+    /**
+     * String assets. Notable difference here: files app extern defines
+     * this string object on FileBrowserBackgroundFull.
+     * @type {Object<string>}
+     */
+    this.stringData;
+  }
 
   /**
-   * @return {boolean} Whether the handler is syncing items or not.
+   * @param {function()} callback Ready callback.
    */
-  get syncing() {}
+  ready(callback) {
+    window.fileManagerLoadScript('strings.js').then(() => {
+      this.stringData = window.loadTimeData.data_;
+      window.loadTimeData.data_ = null;
+      callback();
+    });
+  }
 }
 
-window.BackgroundPageFake = class {
+window.FileBrowserBackgroundFull = class extends FileBrowserBackground {
   constructor() {
+    super();
+
     /**
-     * @type {FileBrowserBackground}
+     * @type {!DriveSyncHandler}
      */
-    this.background;
+    this.driveSyncHandler;
 
     /**
-     * @type {!Object}
+     * @type {!ProgressCenter}
      */
-    this.launcher = {};
+    this.progressCenter = new ProgressCenter();
 
     /**
-     * @private @type {VolumeManager}
+     * @type {FileOperationManager}
      */
-    this.volumeManagerInstance_;
+    this.fileOperationManager = new FileOperationManager();
 
     /**
-     * @type {!VolumeManagerFactory}
+     * @type {!importer.ImportRunner}
      */
-    this.volumeManagerFactory = /** @type {!Object} */ ({
-      /** @return {!VolumeManager} */
-      getInstance() {
-        if (!this.volumeManagerInstance_) {
-          this.volumeManagerInstance_ = new VolumeManager();
-        }
-        return this.volumeManagerInstance_;
-      },
-    });
+    this.mediaImportHandler = new MediaImportHandler();
 
     /**
-     * @type {!DriveSyncHandler}
+     * @type {!importer.MediaScanner}
      */
-    this.driveSyncHandler = new DriveSyncHandler();
+    this.mediaScanner = new MediaScanner();
+
+    /**
+     * @type {!importer.HistoryLoader}
+     */
+    this.historyLoader = new HistoryLoader();
+
+    /**
+     * @type {!Crostini}
+     */
+    this.crostini = new Crostini();
+
+    /**
+     * @private @type {VolumeManager}
+     */
+    this.volumeManagerInstance_;
   }
 
   /**
-   * @param {Window} window
+   * Returns VolumeManager instance.
+   * @public
+   * @return {!VolumeManager}
    */
-  registerDialog(window) {}
+  getVolumeManager() {
+    if (!this.volumeManagerInstance_) {
+      this.volumeManagerInstance_ = new VolumeManager();
+    }
+
+    return this.volumeManagerInstance_;
+  }
+}
+
+window.DriveSyncHandler = class extends EventTarget {
+  /**
+   * Returns the completed event name.
+   * @return {string}
+   */
+  getCompletedEventName() {}
+
+  /**
+   * Returns whether the Drive sync is currently suppressed or not.
+   * @return {boolean}
+   */
+  isSyncSuppressed() {}
+
+  /**
+   * Shows a notification that Drive sync is disabled on cellular networks.
+   */
+  showDisabledMobileSyncNotification() {}
+
+  /**
+   * @return {boolean} Whether the handler is syncing items or not.
+   */
+  get syncing() {}
 }
 
 window.VolumeManager = class {
@@ -391,64 +465,6 @@ window.VolumeInfoListFake = class {
   }
 }
 
-window.FileBrowserBackground = class {
-  constructor() {
-    /** @type {!Object<!Window>} */
-    this.dialogs;
-  }
-  /**
-   * @param {function()} callback
-   */
-  ready(callback) {}
-}
-
-window.FileBrowserBackgroundFull = class extends FileBrowserBackground {
-  constructor() {
-    super();
-
-    /**
-     * @type {!DriveSyncHandler}
-     */
-    this.driveSyncHandler;
-
-    /**
-     * @type {!ProgressCenter}
-     */
-    this.progressCenter;
-
-    /**
-     * String assets.
-     * @type {Object<string>}
-     */
-    this.stringData;
-
-    /**
-     * @type {FileOperationManager}
-     */
-    this.fileOperationManager;
-
-    /**
-     * @type {!importer.ImportRunner}
-     */
-    this.mediaImportHandler;
-
-    /**
-     * @type {!importer.MediaScanner}
-     */
-    this.mediaScanner;
-
-    /**
-     * @type {!importer.HistoryLoader}
-     */
-    this.historyLoader;
-
-    /**
-     * @type {!Crostini}
-     */
-    this.crostini;
-  }
-}
-
 window.Crostini = class {
   /**
    * Initialize enabled settings.