Turn on verbose flag for compiling file_manager.

ui/file_manager/gallery/js/image_editor/image_editor.js

 // Copyright 2014 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.
 
 /**
  * ImageEditor is the top level object that holds together and connects
  * everything needed for image editing.
  *
  * @param {!Viewport} viewport The viewport.
  * @param {!ImageView} imageView The ImageView containing the images to edit.
@@ skipping 176 matching lines @@
   for (var i = 0; i != this.modes_.length; i++) {
     var mode = this.modes_[i];
     ImageUtil.setAttribute(assert(mode.button_), 'disabled',
         !mode.isApplicable());
   }
 };
 
 /**
  * Open the editing session for a new image.
  *
- * @param {!Gallery.Item} item Gallery item.
+ * @param {!GalleryItem} item Gallery item.
  * @param {!ImageView.Effect} effect Transition effect object.
  * @param {function(function())} saveFunction Image save function.
  * @param {function()} displayCallback Display callback.
  * @param {function(!ImageView.LoadType, number, *=)} loadCallback Load
  *     callback.
  */
 ImageEditor.prototype.openSession = function(
     item, effect, saveFunction, displayCallback, loadCallback) {
   if (this.commandQueue_)
     throw new Error('Session not closed');
@@ skipping 1291 matching lines @@
 
 /**
  * Hide the prompt.
  */
 ImageEditor.Prompt.prototype.hide = function() {
   if (!this.prompt_) return;
   this.prompt_.setAttribute('state', 'fadeout');
   // Allow some time for the animation to play out.
   this.setTimer(this.reset.bind(this), 500);
 };