Turn on verbose flag for compiling file_manager.

ui/file_manager/gallery/js/gallery_data_model_unittest.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.
 
 var model;
 var fileSystem;
 var item;
 
 /**
  * Mock thumbnail model.
@@ skipping 13 matching lines @@
         get: function() {
           return Promise.resolve([{}]);
         }
       },
       /* Mock EntryListWatcher */{});
   fileSystem = new MockFileSystem('volumeId');
   model.fallbackSaveDirectory = fileSystem.root;
 }
 
 function testSaveItemOverwrite(callback) {
-  var item = new Gallery.Item(
+  var item = new GalleryItem(
       new MockEntry(fileSystem, '/test.jpg'),
       null,
       /* metadataItem */ {},
       /* thumbnailMetadataItem */ {},
       /* original */ true);
 
   // Mocking the saveToFile method.
   item.saveToFile = function(
       volumeManager,
       metadataModel,
       fallbackDir,
       canvas,
       overwrite,
       callback) {
     callback(true);
   };
   model.push(item);
   reportPromise(
       model.saveItem({}, item, document.createElement('canvas'),
           true /* overwrite */).
           then(function() { assertEquals(1, model.length); }),
       callback);
 }
 
 function testSaveItemToNewFile(callback) {
-  var item = new Gallery.Item(
+  var item = new GalleryItem(
       new MockEntry(fileSystem, '/test.webp'),
       null,
       /* metadataItem */ {},
       /* thumbnailMetadataItem */ {},
       /* original */ true);
 
   // Mocking the saveToFile method. In this case, Gallery saves to a new file
   // since it cannot overwrite to webp image file.
   item.saveToFile = function(
       volumeManager,
@@ skipping 13 matching lines @@
           false /* not overwrite */).
           then(function() {
             assertEquals(2, model.length);
             assertEquals('test (1).png', model.item(0).getFileName());
             assertFalse(model.item(0).isOriginal());
             assertEquals('test.webp', model.item(1).getFileName());
             assertTrue(model.item(1).isOriginal());
           }),
       callback);
 }