Chrome on Android : Begin removing references to themes.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 4428 matching lines @@
           'sources/': [
             ['exclude', '^browser/notifications/'],
           ],
         }],
         ['enable_web_intents==0', {
           'sources/': [
             ['exclude', '^browser/intents'],
             ['exclude', '^browser/ui/intents'],
           ],
         }],
+        ['enable_themes==0', {
+          'sources!': [
+            'browser/sync/glue/theme_change_processor.cc',
+            'browser/sync/glue/theme_data_type_controller.cc',
+            'browser/ui/webui/theme_source.cc',
+          ],
+          'sources/': [
+            ['exclude', '^browser/themes/'],
+          ],
+        }],
         ['OS=="android"', {
           'sources!': [
             'browser/bookmarks/bookmark_context_menu_controller.cc',
             # Bookmark export/import are handled via the BookmarkColumns
             # ContentProvider.
             'browser/bookmarks/bookmark_html_writer.cc',
             'browser/jankometer.cc',
             'browser/ui/sad_tab_helper.cc',
             'browser/ui/sync/one_click_signin_dialog.h',
             'browser/ui/sync/one_click_signin_helper.cc',
             'browser/ui/sync/one_click_signin_helper.h',
             'browser/ui/sync/one_click_signin_histogram.h',
             'browser/ui/sync/one_click_signin_sync_starter.cc',
             'browser/ui/sync/one_click_signin_sync_starter.h',
             'browser/ui/webui/certificate_viewer_webui.cc',
-            'browser/ui/webui/ntp/new_tab_page_sync_handler.cc',
             'browser/ui/window_sizer.cc',
             'browser/ui/window_sizer.h',
+            'browser/ui/webui/ntp/new_tab_page_sync_handler.cc',
             'browser/ui/webui/ntp/ntp_resource_cache.cc',
           ],
           'sources/': [
             ['exclude', '^browser/importer/'],
             ['exclude', '^browser/printing/'],
-            ['exclude', '^browser/themes/'],
             ['exclude', '^browser/ui/panels/'],
             ['exclude', '^browser/ui/tabs/'],
             ['exclude', '^browser/ui/toolbar/'],
             ['exclude', '^browser/ui/webui/downloads_'],
             ['exclude', '^browser/ui/webui/options'],
             ['exclude', '^browser/ui/webui/options2'],
             ['exclude', '^browser/ui/webui/print_preview/'],
             ['exclude', '^browser/ui/webui/sync_promo'],
           ],
         }],
@@ skipping 880 matching lines @@
          'variables': {
           'proto_in_dir': '../third_party/cros_system_api/dbus/',
           'proto_out_dir': 'chrome/browser/chromeos/dbus',
          },
          'includes': ['../build/protoc.gypi'],
         }],
       ],
     },
   ],
 }