AppListController refactoring part 3: Switching over to use AppListShower in Ash.

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index be76e386fc0abdbced92fd64287f93a2b74fa641..3ef16eb568935d4962fe8ebb6caa233a79a1b1f9 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -519,8 +519,6 @@
       'volume_control_delegate.h',
       'wm/always_on_top_controller.cc',
       'wm/always_on_top_controller.h',
-      'wm/app_list_controller.cc',
-      'wm/app_list_controller.h',
       'wm/ash_focus_rules.cc',
       'wm/ash_focus_rules.h',
       'wm/ash_native_cursor_manager.cc',
@@ -702,8 +700,6 @@
       'desktop_background/desktop_background_controller_test_api.h',
       'shell/toplevel_window.cc',
       'shell/toplevel_window.h',
-      'test/app_list_controller_test_api.cc',
-      'test/app_list_controller_test_api.h',
       'test/ash_test_base.cc',
       'test/ash_test_base.h',
       'test/ash_test_helper.cc',
@@ -818,9 +814,7 @@
       'accelerators/accelerator_table_unittest.cc',
       'accelerators/magnifier_key_scroller_unittest.cc',
       'accelerators/spoken_feedback_toggler_unittest.cc',
-      # TODO(mfomitchev): uncomment when ash::Shell is switched to using
-      # app_list::AppListShower instead of ash::AppListController.
-#      'app_list/app_list_shower_delegate_unittest.cc',
+      'app_list/app_list_shower_delegate_unittest.cc',
       'ash_touch_exploration_manager_chromeos_unittest.cc',
       'autoclick/autoclick_unittest.cc',
       'content/display/screen_orientation_controller_chromeos_unittest.cc',
@@ -908,7 +902,6 @@
       'utility/partial_screenshot_controller_unittest.cc',
       'virtual_keyboard_controller_unittest.cc',
       'wm/always_on_top_controller_unittest.cc',
-      'wm/app_list_controller_unittest.cc',
       'wm/ash_native_cursor_manager_unittest.cc',
       'wm/ash_focus_rules_unittest.cc',
       'wm/dock/docked_window_layout_manager_unittest.cc',