Move Ash wallpapers into a separate grd/pak file to avoid duplication

chrome/chrome_resources.gyp

 # 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.
 {
   'variables': {
     'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/chrome',
     'repack_locales_cmd': ['python', 'tools/build/repack_locales.py'],
   },
   'targets': [
     {
@@ skipping 252 matching lines @@
         'chrome_resources',
         'chrome_strings',
         'platform_locale_settings',
         'theme_resources',
         # TODO(zork): Protect this with if use_aura==1
         '<(DEPTH)/ash/ash_strings.gyp:ash_strings',
         '<(DEPTH)/content/content_resources.gyp:content_resources',
         '<(DEPTH)/net/net.gyp:net_resources',
         '<(DEPTH)/ui/base/strings/ui_strings.gyp:ui_strings',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
+        '<(DEPTH)/ui/ui.gyp:ui_resources_wallpapers',
         '<(DEPTH)/webkit/support/webkit_support.gyp:webkit_resources',
         '<(DEPTH)/webkit/support/webkit_support.gyp:webkit_strings',
       ],
       'actions': [
         {
           'includes': ['chrome_repack_chrome.gypi']
         },
         {
           'includes': ['chrome_repack_locales.gypi']
         },
@@ skipping 93 matching lines @@
                   ],
                 },
               ],
             }],
           ], # conditions
         }], # end OS != "mac"
       ], # conditions
     },
   ], # targets
 }