Replaced BackgroundAnimator with ShelfBackgroundAnimator.

ash/ash.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,
     # These files lists are shared with the GN build.
     'ash_sources': [
       'accelerators/accelerator_commands.cc',
@@ skipping 57 matching lines @@
       'common/material_design/material_design_controller.h',
       'common/root_window_controller_common.cc',
       'common/root_window_controller_common.h',
       'common/session/session_state_delegate.cc',
       'common/session/session_state_delegate.h',
       'common/session/session_state_observer.cc',
       'common/session/session_state_observer.h',
       'common/session/session_types.h',
       'common/shelf/shelf_alignment_menu.cc',
       'common/shelf/shelf_alignment_menu.h',
+      'common/shelf/shelf_background_animator.cc',
+      'common/shelf/shelf_background_animator.h',
+      'common/shelf/shelf_background_animator_observer.h',
       'common/shelf/shelf_constants.cc',
       'common/shelf/shelf_constants.h',
       'common/shelf/shelf_item_delegate.h',
       'common/shelf/shelf_item_delegate_manager.cc',
       'common/shelf/shelf_item_delegate_manager.h',
       'common/shelf/shelf_item_types.cc',
       'common/shelf/shelf_item_types.h',
       'common/shelf/shelf_menu_model.h',
       'common/shelf/shelf_model.cc',
       'common/shelf/shelf_model.h',
@@ skipping 694 matching lines @@
       'test/ash_test_helper.cc',
       'test/ash_test_helper.h',
       'test/ash_test_views_delegate.cc',
       'test/ash_test_views_delegate.h',
       'test/child_modal_window.cc',
       'test/child_modal_window.h',
       'test/cursor_manager_test_api.cc',
       'test/cursor_manager_test_api.h',
       'test/display_manager_test_api.cc',
       'test/display_manager_test_api.h',
-      'test/material_design_controller_test_api.cc',
-      'test/material_design_controller_test_api.h',
+      'common/material_design/test/material_design_controller_test_api.cc',

[James Cook, 2016/06/14 17:50:00]

nit: Sort includes.

Also, I would prefer this either go in //ash/common/test (to mirror //ash/test)
or in //ash/common/material_design (to sit next to the file under test).

[bruthig, 2016/07/26 19:50:01]

Moved to //ash/common/test

+      'common/material_design/test/material_design_controller_test_api.h',
       'test/mirror_window_test_api.cc',
       'test/mirror_window_test_api.h',
       'test/overflow_bubble_view_test_api.cc',
       'test/overflow_bubble_view_test_api.h',
       'test/shelf_button_pressed_metric_tracker_test_api.cc',
       'test/shelf_button_pressed_metric_tracker_test_api.h',
       'test/shelf_item_delegate_manager_test_api.cc',
       'test/shelf_item_delegate_manager_test_api.h',
       'test/shelf_test_api.h',
       'test/shelf_view_test_api.cc',
@@ skipping 85 matching lines @@
       'accelerators/accelerator_commands_unittest.cc',
       'accelerators/accelerator_controller_unittest.cc',
       'accelerators/accelerator_filter_unittest.cc',
       'accelerators/accelerator_table_unittest.cc',
       'accelerators/magnifier_key_scroller_unittest.cc',
       'accelerators/spoken_feedback_toggler_unittest.cc',
       'app_list/app_list_presenter_delegate_unittest.cc',
       'ash_touch_exploration_manager_chromeos_unittest.cc',
       'autoclick/autoclick_unittest.cc',
       'common/material_design/material_design_controller_unittest.cc',
+      'common/shelf/shelf_background_animator_unittest.cc',
       'common/shelf/shelf_model_unittest.cc',
       'common/system/update/tray_update_unittest.cc',
       'content/display/screen_orientation_controller_chromeos_unittest.cc',
       'content/keyboard_overlay/keyboard_overlay_delegate_unittest.cc',
       'content/keyboard_overlay/keyboard_overlay_view_unittest.cc',
       'desktop_background/desktop_background_controller_unittest.cc',
       'dip_unittest.cc',
       'display/cursor_window_controller_unittest.cc',
       'display/display_change_observer_chromeos_unittest.cc',
       'display/display_color_manager_chromeos_unittest.cc',
@@ skipping 542 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }