Implement aura::WindowPortMus::CreateCompositorFrameSink()

ui/aura/local/window_port_local.cc

 // Copyright 2016 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/aura/local/window_port_local.h"
 
 #include "cc/surfaces/surface_manager.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/local/compositor_frame_sink_local.h"
@@ skipping 111 matching lines @@
 
 void WindowPortLocal::OnWillRemoveWindowFromRootWindow() {
   if (frame_sink_id_.is_valid())
     window_->layer()->GetCompositor()->RemoveFrameSink(frame_sink_id_);
 }
 
 void WindowPortLocal::OnSurfaceChanged(const cc::SurfaceId& surface_id,
                                        const gfx::Size& surface_size) {
   DCHECK_EQ(surface_id.frame_sink_id(), frame_sink_id_);
   local_surface_id_ = surface_id.local_surface_id();
-  // The bounds must be updated before switching to the new surface, because
-  // the layer may be mirrored, in which case a surface change causes the
-  // mirror layer to update its surface using the latest bounds.
-  window_->layer()->SetBounds(
-      gfx::Rect(window_->layer()->bounds().origin(), surface_size));
   cc::SurfaceInfo surface_info(surface_id, 1.0f, surface_size);
   scoped_refptr<cc::SurfaceReferenceFactory> reference_factory =
       aura::Env::GetInstance()
           ->context_factory_private()
           ->GetSurfaceManager()
           ->reference_factory();
   window_->layer()->SetShowPrimarySurface(surface_info, reference_factory);
   window_->layer()->SetFallbackSurface(surface_info);
 }
 
 }  // namespace aura