gtk: Fold bookmark_drag.* into bookmark_drag_drop_gtk.cc

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 1035 matching lines @@
         'browser/ui/gtk/avatar_menu_item_gtk.cc',
         'browser/ui/gtk/avatar_menu_item_gtk.h',
         'browser/ui/gtk/back_forward_button_gtk.cc',
         'browser/ui/gtk/back_forward_button_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_bar_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_bar_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_bar_instructions_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_bar_instructions_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_bubble_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h',
-        'browser/ui/gtk/bookmarks/bookmark_drag.cc',
-        'browser/ui/gtk/bookmarks/bookmark_drag.h',
         'browser/ui/gtk/bookmarks/bookmark_drag_drop_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_editor_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_editor_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_menu_controller_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_menu_controller_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_sub_menu_model_gtk.cc',
         'browser/ui/gtk/bookmarks/bookmark_sub_menu_model_gtk.h',
         'browser/ui/gtk/bookmarks/bookmark_tree_model.cc',
         'browser/ui/gtk/bookmarks/bookmark_tree_model.h',
         'browser/ui/gtk/bookmarks/bookmark_utils_gtk.cc',
@@ skipping 2121 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',
           ],
         }],
       ],
     },
   ],
 }