Turn on verbose flag for compiling file_manager.

ui/file_manager/gallery/js/gallery_data_model.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.
 
 /**
  * Data model for gallery.
  *
  * @param {!MetadataModel} metadataModel
  * @param {!EntryListWatcher=} opt_watcher Entry list watcher.
  * @constructor
@@ skipping 40 matching lines @@
 GalleryDataModel.MAX_SCREEN_IMAGE_CACHE_ = 5;
 
 GalleryDataModel.prototype = {
   __proto__: cr.ui.ArrayDataModel.prototype
 };
 
 /**
  * Saves new image.
  *
  * @param {!VolumeManagerWrapper} volumeManager Volume manager instance.
- * @param {!Gallery.Item} item Original gallery item.
+ * @param {!GalleryItem} item Original gallery item.
  * @param {!HTMLCanvasElement} canvas Canvas containing new image.
  * @param {boolean} overwrite Set true to overwrite original if it's possible.
  * @return {!Promise} Promise to be fulfilled with when the operation completes.
  */
 GalleryDataModel.prototype.saveItem = function(
     volumeManager, item, canvas, overwrite) {
   var oldEntry = item.getEntry();
   var oldLocationInfo = item.getLocationInfo();
   var oldIsOriginal = item.isOriginal();
   return new Promise(function(fulfill, reject) {
@@ skipping 18 matching lines @@
           this.dispatchEvent(event);
 
           if (!util.isSameEntry(oldEntry, item.getEntry())) {
             Promise.all([
               this.metadataModel_.get(
                   [oldEntry], Gallery.PREFETCH_PROPERTY_NAMES),
               new ThumbnailModel(this.metadataModel_).get([oldEntry])
             ]).then(function(itemLists) {
               // New entry is added and the item now tracks it.
               // Add another item for the old entry.
-              var anotherItem = new Gallery.Item(
+              var anotherItem = new GalleryItem(
                   oldEntry,
                   oldLocationInfo,
                   itemLists[0][0],
                   itemLists[1][0],
                   oldIsOriginal);
               // The item must be added behind the existing item so that it does
               // not change the index of the existing item.
               // TODO(hirono): Update the item index of the selection model
               // correctly.
               this.splice(this.indexOf(item) + 1, 0, anotherItem);
@@ skipping 51 matching lines @@
  * @private
  */
 GalleryDataModel.prototype.onSplice_ = function(event) {
   if (!event.removed || !event.removed.length)
     return;
   var removedURLs = event.removed.map(function(item) {
     return item.getEntry().toURL();
   });
   this.metadataModel_.notifyEntriesRemoved(removedURLs);
 };