make menus, bubbles, etc. top level windows on aura

ui/aura/aura.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 11 matching lines @@
       'defines': [
         'AURA_IMPLEMENTATION',
       ],
       'sources': [
         'client/activation_change_observer.h',
         'client/activation_change_observer.cc',
         'client/activation_client.cc',
         'client/activation_client.h',
         'client/activation_delegate.cc',
         'client/activation_delegate.h',
+        'client/animation_host.cc',
+        'client/animation_host.h',
         'client/aura_constants.cc',
         'client/aura_constants.h',
         'client/capture_client.cc',
         'client/capture_client.h',
         'client/capture_delegate.h',
         'client/cursor_client.cc',
         'client/cursor_client.h',
         'client/default_capture_client.cc',
         'client/default_capture_client.h',
         'client/dispatcher_client.cc',
@@ skipping 231 matching lines @@
         # osmesa GL implementation is used on linux.
         ['OS=="linux"', {
           'dependencies': [
             '<(DEPTH)/third_party/mesa/mesa.gyp:osmesa',
           ],
         }],
       ],
     },
   ],
 }