Cross-platform DefaultThemeProvider.

ui/ui.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': {
     'chromium_code': 1,
   },
   'includes': [
     'shell_dialogs.gypi',
@@ skipping 114 matching lines @@
         'base/cursor/cursor_loader_null.h',
         'base/cursor/cursor_loader_win.cc',
         'base/cursor/cursor_null.cc',
         'base/cursor/cursor_loader_win.h',
         'base/cursor/cursor_loader_x11.cc',
         'base/cursor/cursor_loader_x11.h',
         'base/cursor/cursor_win.cc',
         'base/cursor/cursor_x11.cc',
         'base/cursor/cursors_aura.cc',
         'base/cursor/cursors_aura.h',
+        'base/default_theme_provider.cc',
+        'base/default_theme_provider.h',
+        'base/default_theme_provider_mac.mm',
         'base/dragdrop/cocoa_dnd_util.h',
         'base/dragdrop/cocoa_dnd_util.mm',
         'base/dragdrop/desktop_selection_provider_aurax11.h',
         'base/dragdrop/drag_drop_types.h',
         'base/dragdrop/drag_drop_types_win.cc',
         'base/dragdrop/drag_source_win.cc',
         'base/dragdrop/drag_source_win.h',
         'base/dragdrop/drag_utils.cc',
         'base/dragdrop/drag_utils.h',
         'base/dragdrop/drag_utils_aura.cc',
@@ skipping 853 matching lines @@
               'xcode_settings': {
                 'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
               },
             }],
           ],
         },
       ],
     }],
   ],
 }