Use chrome_html structure for shared_resources and options2 page.

build/common.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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 1019 matching lines @@
       ['branding=="Chrome"', {
         # TODO(mmoss) The .grd files look for _google_chrome, but for
         # consistency they should look for google_chrome_build like C++.
         'grit_defines': ['-D', '_google_chrome',
                          '-E', 'CHROMIUM_BUILD=google_chrome'],
       }, {
         'grit_defines': ['-D', '_chromium',
                          '-E', 'CHROMIUM_BUILD=chromium'],
       }],
       ['chromeos==1', {
-        'grit_defines': ['-D', 'chromeos'],
+        'grit_defines': ['-D', 'chromeos', '-D', 'scale_factors=2x'],
       }],
       ['toolkit_views==1', {
         'grit_defines': ['-D', 'toolkit_views'],
       }],
       ['use_aura==1', {
         'grit_defines': ['-D', 'use_aura'],
       }],
       ['use_ash==1', {
         'grit_defines': ['-D', 'use_ash'],
       }],
@@ skipping 2061 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }