Aura/Ash split: Move ScreenAura to ash::ScreenAsh.

ui/gfx/screen_ash.cc

 // Copyright (c) 2011 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.
 
 #include "ui/gfx/screen.h"
 
 #include "base/logging.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gfx {
 
-// gfx can't depend upon aura, otherwise we have circular dependencies. So,
-// gfx::Screen is pluggable for aura and Desktop plugs in the real
-// implementation.
+// gfx can't depend upon ash, otherwise we have circular dependencies. So,
+// gfx::Screen is pluggable and Desktop plugs in the real implementation.
 
 // static
 Screen* Screen::instance_ = NULL;
 
 // static
 void Screen::SetInstance(Screen* screen) {
   delete instance_;
   instance_ = screen;
 }
 
@@ skipping 46 matching lines @@
 gfx::Size Screen::GetPrimaryMonitorSize() {
   return instance_->GetPrimaryMonitorSizeImpl();
 }
 
 // static
 int Screen::GetNumMonitors() {
   return instance_->GetNumMonitorsImpl();
 }
 
 }  // namespace gfx