OffscreenBrowserCompositorOutputSurface for Unified Desktop

ash/host/ash_window_tree_host_unified.cc

 // Copyright 2015 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 "ash/host/ash_window_tree_host_unified.h"
 #include "ash/host/root_window_transformer.h"
 #include "base/logging.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_targeter.h"
@@ skipping 86 matching lines @@
 
 aura::WindowTreeHost* AshWindowTreeHostUnified::AsWindowTreeHost() {
   return this;
 }
 
 ui::EventSource* AshWindowTreeHostUnified::GetEventSource() {
   return this;
 }
 
 gfx::AcceleratedWidget AshWindowTreeHostUnified::GetAcceleratedWidget() {
-  // TODO(oshima): Enable offscreen compositor.
   return gfx::kNullAcceleratedWidget;
 }
 
 void AshWindowTreeHostUnified::Show() {
 }
 
 void AshWindowTreeHostUnified::Hide() {
 }
 
 gfx::Rect AshWindowTreeHostUnified::GetBounds() const {
@@ skipping 41 matching lines @@
   DCHECK(iter != mirroring_hosts_.end());
   window->RemoveObserver(this);
   mirroring_hosts_.erase(iter);
 }
 
 ui::EventProcessor* AshWindowTreeHostUnified::GetEventProcessor() {
   return dispatcher();
 }
 
 }  // namespace ash