Turn on verbose flag for compiling file_manager.

ui/file_manager/gallery/js/image_editor/image_util.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.
 
 // Namespace object for the utilities.
 var ImageUtil = {};
 
 /**
  * Performance trace.
  */
@@ skipping 449 matching lines @@
    * @private
    */
   this.entry_ = null;
 };
 
 /**
  * Loads an image.
  * TODO(mtomasz): Simplify, or even get rid of this class and merge with the
  * ThumbnaiLoader class.
  *
- * @param {!Gallery.Item} item Item representing the image to be loaded.
+ * @param {!GalleryItem} item Item representing the image to be loaded.
  * @param {function(!HTMLCanvasElement, string=)} callback Callback to be
  *     called when loaded. The second optional argument is an error identifier.
  * @param {number=} opt_delay Load delay in milliseconds, useful to let the
  *     animations play out before the computation heavy image loading starts.
  */
 ImageUtil.ImageLoader.prototype.load = function(item, callback, opt_delay) {
   var entry = item.getEntry();
 
   this.cancel();
   this.entry_ = entry;
@@ skipping 249 matching lines @@
 ImageUtil.getMetricName = function(name) {
   return 'PhotoEditor.' + name;
 };
 
 /**
  * Used for metrics reporting, keep in sync with the histogram description.
  * @type {Array<string>}
  * @const
  */
 ImageUtil.FILE_TYPES = ['jpg', 'png', 'gif', 'bmp', 'webp'];