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 3f7ecc5995d1635a672f78ffd4e6882d0b7fdfeb..075aba4cd29854f3475da1a902eb3f932c6ab873 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -518,8 +518,6 @@
       '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/app_list_shower_delegate.cc',
       'wm/app_list_shower_delegate.h',
       'wm/app_list_shower_delegate_factory.cc',
@@ -706,8 +704,6 @@
       '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',
@@ -910,10 +906,7 @@
       'utility/partial_screenshot_controller_unittest.cc',
       'virtual_keyboard_controller_unittest.cc',
       'wm/always_on_top_controller_unittest.cc',
-      'wm/app_list_controller_unittest.cc',
-      # TODO(mfomitchev): uncomment when ash::Shell is switched to using
-      # app_list::AppListShower instead of ash::AppListController.
-#      'wm/app_list_shower_delegate_unittest.cc',
+      'wm/app_list_shower_delegate_unittest.cc',
       'wm/ash_native_cursor_manager_unittest.cc',
       'wm/ash_focus_rules_unittest.cc',
       'wm/dock/docked_window_layout_manager_unittest.cc',