Remove BalloonCollectionImplAsh.

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 1415 matching lines @@
         'browser/ui/views/accessibility/accessibility_event_router_views.h',
         'browser/ui/views/accessibility/invert_bubble_view.cc',
         'browser/ui/views/accessibility/invert_bubble_view.h',
         'browser/ui/views/action_box_context_menu.cc',
         'browser/ui/views/action_box_context_menu.h',
         'browser/ui/views/action_box_menu.cc',
         'browser/ui/views/action_box_menu.h',
         'browser/ui/views/app_menu_button_win.cc',
         'browser/ui/views/app_menu_button_win.h',
         'browser/ui/views/app_list/app_list_controller_win.cc',
-        'browser/ui/views/ash/balloon_collection_impl_ash.cc',
-        'browser/ui/views/ash/balloon_collection_impl_ash.h',
-        'browser/ui/views/ash/balloon_view_ash.cc',
-        'browser/ui/views/ash/balloon_view_ash.h',
         'browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc',
         'browser/ui/views/ash/chrome_browser_main_extra_parts_ash.h',
         'browser/ui/views/ash/tab_scrubber.h',
         'browser/ui/views/ash/tab_scrubber.cc',
         'browser/ui/views/autofill/autocheckout_bubble_views.cc',
         'browser/ui/views/autofill/autocheckout_bubble_views.h',
         'browser/ui/views/autofill/autofill_dialog_views.cc',
         'browser/ui/views/autofill/autofill_dialog_views.h',
         'browser/ui/views/autofill/autofill_popup_view_views.cc',
         'browser/ui/views/autofill/autofill_popup_view_views.h',
@@ skipping 1439 matching lines @@
         }],
         ['enable_message_center==1', {
           'dependencies': [
             '../ui/message_center/message_center.gyp:message_center',
           ],
         }],
       ],
     },
   ],
 }