GTK: implement extension bookmark manager drag api....

chrome/chrome_browser.gypi

 # Copyright (c) 2010 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',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 1121 matching lines @@
         'browser/gtk/constrained_window_gtk.cc',
         'browser/gtk/constrained_window_gtk.h',
         'browser/gtk/content_blocked_bubble_gtk.cc',
         'browser/gtk/content_blocked_bubble_gtk.h',
         'browser/gtk/gtk_chrome_cookie_view.cc',
         'browser/gtk/gtk_chrome_cookie_view.h',
         'browser/gtk/create_application_shortcuts_dialog_gtk.cc',
         'browser/gtk/create_application_shortcuts_dialog_gtk.h',
         'browser/gtk/custom_button.cc',
         'browser/gtk/custom_button.h',
+        'browser/gtk/custom_drag.cc',
+        'browser/gtk/custom_drag.h',
         'browser/gtk/dialogs_gtk.cc',
         'browser/gtk/download_in_progress_dialog_gtk.cc',
         'browser/gtk/download_in_progress_dialog_gtk.h',
         'browser/gtk/download_item_gtk.cc',
         'browser/gtk/download_item_gtk.h',
-        'browser/gtk/download_item_drag.cc',
-        'browser/gtk/download_item_drag.h',
         'browser/gtk/download_shelf_gtk.cc',
         'browser/gtk/download_shelf_gtk.h',
         'browser/gtk/download_started_animation_gtk.cc',
         'browser/gtk/edit_search_engine_dialog.cc',
         'browser/gtk/edit_search_engine_dialog.h',
         'browser/gtk/extension_install_prompt_gtk.cc',
         'browser/gtk/extension_installed_bubble_gtk.cc',
         'browser/gtk/extension_installed_bubble_gtk.h',
         'browser/gtk/extension_view_gtk.cc',
         'browser/gtk/extension_view_gtk.h',
@@ skipping 1914 matching lines @@
       ]
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: