Revert of AppListController refactoring part 2: Ash's AppListShowerDelegate imlementation.

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index be76e386fc0abdbced92fd64287f93a2b74fa641..af7a2426f1dec515f11e7a56cd1d5163d4d13486 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -28,11 +28,6 @@
       'accelerators/spoken_feedback_toggler.cc',
       'accelerators/spoken_feedback_toggler.h',
       'accessibility_delegate.h',
-      'app_list/app_list_shower_delegate.cc',
-      'app_list/app_list_shower_delegate.h',
-      'app_list/app_list_shower_delegate_factory.cc',
-      'app_list/app_list_shower_delegate_factory.h',
-      'app_list/app_list_view_delegate_factory.h',
       'ash_constants.cc',
       'ash_constants.h',
       'ash_export.h',
@@ -818,9 +813,6 @@
       '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',
       'ash_touch_exploration_manager_chromeos_unittest.cc',
       'autoclick/autoclick_unittest.cc',
       'content/display/screen_orientation_controller_chromeos_unittest.cc',
@@ -976,7 +968,6 @@
         '../third_party/icu/icu.gyp:icuuc',
         '../ui/accessibility/accessibility.gyp:accessibility',
         '../ui/app_list/app_list.gyp:app_list',
-        '../ui/app_list/shower/app_list_shower.gyp:app_list_shower',
         '../ui/aura/aura.gyp:aura',
         '../ui/base/ime/ui_base_ime.gyp:ui_base_ime',
         '../ui/base/ui_base.gyp:ui_base',
@@ -1111,7 +1102,6 @@
         '../testing/gtest.gyp:gtest',
         '../ui/accessibility/accessibility.gyp:ax_gen',
         '../ui/app_list/app_list.gyp:app_list_test_support',
-        '../ui/app_list/shower/app_list_shower.gyp:app_list_shower',
         '../ui/events/devices/events_devices.gyp:events_devices',
         '../ui/views/views.gyp:views_test_support',
         'ash',
@@ -1174,7 +1164,6 @@
         '../third_party/icu/icu.gyp:icuuc',
         '../ui/accessibility/accessibility.gyp:accessibility',
         '../ui/app_list/app_list.gyp:app_list',
-        '../ui/app_list/shower/app_list_shower.gyp:app_list_shower',
         '../ui/aura/aura.gyp:aura',
         '../ui/aura/aura.gyp:aura_test_support',
         '../ui/base/ime/ui_base_ime.gyp:ui_base_ime',
@@ -1274,7 +1263,6 @@
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
         '../ui/app_list/app_list.gyp:app_list',
-        '../ui/app_list/shower/app_list_shower.gyp:app_list_shower',
         '../ui/aura/aura.gyp:aura',
         '../ui/base/ime/ui_base_ime.gyp:ui_base_ime',
         '../ui/base/ui_base.gyp:ui_base',