bookmarks: Break the dependency in ui/cocoa.

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 305 matching lines @@
         'browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view.h',
         'browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view.mm',
         'browser/ui/cocoa/bookmarks/bookmark_bar_view.h',
         'browser/ui/cocoa/bookmarks/bookmark_bar_view.mm',
         'browser/ui/cocoa/bookmarks/bookmark_bubble_controller.h',
         'browser/ui/cocoa/bookmarks/bookmark_bubble_controller.mm',
         'browser/ui/cocoa/bookmarks/bookmark_button.h',
         'browser/ui/cocoa/bookmarks/bookmark_button.mm',
         'browser/ui/cocoa/bookmarks/bookmark_button_cell.h',
         'browser/ui/cocoa/bookmarks/bookmark_button_cell.mm',
-        'browser/ui/cocoa/bookmarks/bookmark_drag_drop.cc',
+        'browser/ui/cocoa/bookmarks/bookmark_drag_drop.h',
+        'browser/ui/cocoa/bookmarks/bookmark_drag_drop.mm',
         'browser/ui/cocoa/bookmarks/bookmark_editor_base_controller.h',
         'browser/ui/cocoa/bookmarks/bookmark_editor_base_controller.mm',
         'browser/ui/cocoa/bookmarks/bookmark_editor_controller.h',
         'browser/ui/cocoa/bookmarks/bookmark_editor_controller.mm',
         'browser/ui/cocoa/bookmarks/bookmark_folder_target.h',
         'browser/ui/cocoa/bookmarks/bookmark_folder_target.mm',
         'browser/ui/cocoa/bookmarks/bookmark_menu.h',
         'browser/ui/cocoa/bookmarks/bookmark_menu.mm',
         'browser/ui/cocoa/bookmarks/bookmark_menu_bridge.h',
         'browser/ui/cocoa/bookmarks/bookmark_menu_bridge.mm',
@@ skipping 2431 matching lines @@
         }, { # else: enable_app_list==0
           'sources/': [
             ['exclude', '^browser/ui/views/app_list/'],
             ['exclude', '^browser/ui/app_list/'],
           ]
         }],
       ],
     },
   ],
 }