Compile more Gallery targets in gyp v2.

ui/file_manager/gallery/js/thumbnail_mode.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * Thumbnail Mode.
  * @param {!HTMLElement} container A container.
  * @param {!ErrorBanner} errorBanner Error banner.
  * @param {!GalleryDataModel} dataModel Gallery data model.
  * @param {!cr.ui.ListSelectionModel} selectionModel List selection model.
@@ skipping 42 matching lines @@
 ThumbnailMode.prototype.getName = function() { return 'thumbnail'; };
 
 /**
  * Returns title of this mode.
  * @return {string} Mode title.
  */
 ThumbnailMode.prototype.getTitle = function() { return 'GALLERY_THUMBNAIL'; };
 
 /**
  * Returns current sub mode.
- * @return {Gallery.SubMode}
+ * @return {GallerySubMode}
  */
 ThumbnailMode.prototype.getSubMode = function() {
-  return Gallery.SubMode.BROWSE;
+  return GallerySubMode.BROWSE;
 };
 
 /**
  * Executes an action. An action is executed immediately since this mode does
  * not have busy state.
  */
 ThumbnailMode.prototype.executeWhenReady = function(action) { action(); };
 
 /**
  * @return {boolean} Always true. Toolbar is always visible.
@@ skipping 941 matching lines @@
     };
     }.bind(this, this.thumbnailLoadRequestId_))
     .catch(function(requestId, error) {
       if (requestId !== this.thumbnailLoadRequestId_)
         return null;
 
       this.setError_(error);
       return null;
     }.bind(this, this.thumbnailLoadRequestId_));
 };