Add second copy request after screen rotation to flatten the layers in animation.

ash/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 # Historical note: Ash shipped on Windows for a couple years to support
@@ skipping 707 matching lines @@
     "touch/touch_hud_debug.cc",
     "touch/touch_hud_debug.h",
     "touch/touch_hud_projection.cc",
     "touch/touch_hud_projection.h",
     "touch/touch_observer_hud.cc",
     "touch/touch_observer_hud.h",
     "touch/touch_uma.cc",
     "touch/touch_uma.h",
     "utility/screenshot_controller.cc",
     "utility/screenshot_controller.h",
+    "utility/transformer_util.cc",
+    "utility/transformer_util.h",
     "virtual_keyboard_controller.cc",
     "virtual_keyboard_controller.h",
     "wm/ash_focus_rules.cc",
     "wm/ash_focus_rules.h",
     "wm/ash_native_cursor_manager.cc",
     "wm/ash_native_cursor_manager.h",
     "wm/boot_splash_screen_chromeos.cc",
     "wm/boot_splash_screen_chromeos.h",
     "wm/cursor_manager_chromeos.cc",
     "wm/cursor_manager_chromeos.h",
@@ skipping 751 matching lines @@
     "//content/public/app:both",
     "//device/bluetooth",
   ]
 
   data_deps = [
     "//ash/strings:ash_test_strings",
     "//ash/resources:ash_test_resources_with_content_100_percent",
     "//ash/resources:ash_test_resources_200_percent",
   ]
 }