Reland "Unit test for sync online wallpaper"

chrome/browser_tests.isolate

 # Copyright (c) 2012 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'command': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)',
@@ skipping 148 matching lines @@
           '<(PRODUCT_DIR)/libpeerconnection.dll',
         ],
       },
     }],
     ['chromeos==1', {
       'variables': {
         'files': [
           '../chromeos/test/data/',
           '../ui/file_manager/file_manager/',
           '../ui/webui/resources/js/',
+          '../chrome/browser/resources/chromeos/wallpaper_manager/',
           '<(PRODUCT_DIR)/chromevox_test_data/',
           '<(PRODUCT_DIR)/content_shell.pak',
           '<(PRODUCT_DIR)/keyboard_resources.pak',
           '<(PRODUCT_DIR)/libexif.so',
           '<(PRODUCT_DIR)/locales/',
           '<(PRODUCT_DIR)/nacl_helper',
           '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe',
           '<(PRODUCT_DIR)/resources/chromeos/',
           'browser/chromeos/login/test/https_forwarder.py',
         ],
       },
     }],
   ],
   'includes': [
     '../base/base.isolate',
     'chrome.isolate',
   ],
 }