GTK implementation of the action box button.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 3007 matching lines @@
         'browser/ui/gesture_prefs_observer_factory_aura.h',
         'browser/ui/global_error/global_error.cc',
         'browser/ui/global_error/global_error.h',
         'browser/ui/global_error/global_error_bubble_view_base.h',
         'browser/ui/global_error/global_error_service.cc',
         'browser/ui/global_error/global_error_service.h',
         'browser/ui/global_error/global_error_service_factory.cc',
         'browser/ui/global_error/global_error_service_factory.h',
         'browser/ui/gtk/accelerators_gtk.cc',
         'browser/ui/gtk/accelerators_gtk.h',
+        'browser/ui/gtk/action_box_button_gtk.cc',
+        'browser/ui/gtk/action_box_button_gtk.h',
         'browser/ui/gtk/autofill/autofill_popup_view_gtk.cc',
         'browser/ui/gtk/autofill/autofill_popup_view_gtk.h',
         'browser/ui/gtk/avatar_menu_bubble_gtk.cc',
         'browser/ui/gtk/avatar_menu_bubble_gtk.h',
         'browser/ui/gtk/avatar_menu_button_gtk.cc',
         'browser/ui/gtk/avatar_menu_button_gtk.h',
         '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',
@@ skipping 2475 matching lines @@
           'includes': [ '../build/jni_generator.gypi' ],
           'dependencies': [
             'android_jar_jni_headers',
           ],
         },
       ],
      },
     ],
   ],
 }