Do not compile OpaqueBrowserFrameView and co on CrOS

chrome/chrome_browser_ui.gypi

 # Copyright 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_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 2784 matching lines @@
             'browser/ui/views/frame/desktop_browser_frame_aura.cc',
             'browser/ui/views/frame/desktop_browser_frame_aura.h',
             'browser/ui/views/frame/desktop_user_action_handler_aura.cc',
             'browser/ui/views/frame/desktop_user_action_handler_aura.h',
             'browser/ui/views/frame/global_menu_bar_x11.cc',
             'browser/ui/views/frame/global_menu_bar_x11.h',
             'browser/ui/views/frame/global_menu_bar_registrar_x11.cc',
             'browser/ui/views/frame/global_menu_bar_registrar_x11.h',
             'browser/ui/views/frame/native_browser_frame_factory_auralinux.cc',
             'browser/ui/views/frame/native_browser_frame_factory_desktop_ash.cc',
-            'browser/ui/views/frame/opaque_browser_frame_view_linux.h',
-            'browser/ui/views/frame/opaque_browser_frame_view_linux.cc',
             'browser/ui/views/screen_capture_notification_ui_views.cc',
             'browser/ui/webui/help/version_updater_basic.cc',
             'browser/ui/webui/help/version_updater_basic.h',
             'browser/ui/webui/signin/user_manager_screen_handler.h',
             'browser/ui/webui/signin/user_manager_screen_handler.cc',
             'browser/ui/webui/signin/user_manager_ui.h',
             'browser/ui/webui/signin/user_manager_ui.cc',
           ],
+          'sources/': [ 
+            ['exclude', '^browser/ui/views/frame/opaque_browser_frame_view*'],
+          ],
         }],
         ['use_cups==1', {
           'dependencies': [
             '../printing/printing.gyp:cups',
           ],
         }],
         ['use_gconf==0', {
           'sources!': [
             'browser/ui/gtk/gconf_titlebar_listener.cc',
             'browser/ui/gtk/gconf_titlebar_listener.h',
@@ skipping 528 matching lines @@
             'browser/ui/webui/local_discovery/local_discovery_ui.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui.h',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.h',
           ],
         }],
       ],
     },
   ],
 }