Implement ui for re-parenting an item from an app list folder to another position or folder in the …

ui/app_list/app_list.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 89 matching lines @@
         'views/app_list_view.cc',
         'views/app_list_view.h',
         'views/app_list_view_observer.h',
         'views/apps_grid_view.cc',
         'views/apps_grid_view.h',
         'views/apps_grid_view_delegate.h',
         'views/cached_label.cc',
         'views/cached_label.h',
         'views/contents_view.cc',
         'views/contents_view.h',
+        'views/folder_background_view.cc',
+        'views/folder_background_view.h',
         'views/folder_header_view.cc',
         'views/folder_header_view.h',
         'views/folder_header_view_delegate.h',
         'views/page_switcher.cc',
         'views/page_switcher.h',
         'views/progress_bar_view.cc',
         'views/progress_bar_view.h',
         'views/pulsing_block_view.cc',
         'views/pulsing_block_view.h',
         'views/search_box_view.cc',
         'views/search_box_view.h',
         'views/search_box_view_delegate.h',
         'views/search_result_actions_view.cc',
         'views/search_result_actions_view.h',
         'views/search_result_list_view.cc',
         'views/search_result_list_view.h',
         'views/search_result_list_view_delegate.h',
         'views/search_result_view.cc',
         'views/search_result_view.h',
         'views/search_result_view_delegate.h',
         'views/signin_view.cc',
         'views/signin_view.h',
         'views/speech_view.cc',
         'views/speech_view.h',
+        'views/top_icon_animation_view.cc',
+        'views/top_icon_animation_view.h',
       ],
       'conditions': [
         ['use_aura==1', {
           'dependencies': [
             '../aura/aura.gyp:aura',
           ],
         }],
         ['toolkit_views==1', {
           'dependencies': [
             '../../content/content.gyp:content_browser',
@@ skipping 122 matching lines @@
           'dependencies': [
             '../../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
       # Disable c4267 warnings until we fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
   ],
 }