Enable BeginFrame scheduling on aura

content/browser/compositor/browser_compositor_output_surface.cc

 // 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.
 
 #include "content/browser/compositor/browser_compositor_output_surface.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 
 namespace content {
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
-    const scoped_refptr<cc::ContextProvider>& context_provider,
-    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
+    const scoped_refptr<cc::ContextProvider>& context_provider)
     : OutputSurface(context_provider),
-      vsync_manager_(vsync_manager),
       reflector_(nullptr) {
   Initialize();
 }
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
-    scoped_ptr<cc::SoftwareOutputDevice> software_device,
-    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
+    scoped_ptr<cc::SoftwareOutputDevice> software_device)
     : OutputSurface(software_device.Pass()),
-      vsync_manager_(vsync_manager),
       reflector_(nullptr) {
   Initialize();
 }
 
 BrowserCompositorOutputSurface::~BrowserCompositorOutputSurface() {
   if (reflector_)
     reflector_->DetachFromOutputSurface();
   DCHECK(!reflector_);
-  if (!HasClient())
-    return;
-  vsync_manager_->RemoveObserver(this);
 }
 
 void BrowserCompositorOutputSurface::Initialize() {
   capabilities_.max_frames_pending = 1;
   capabilities_.adjust_deadline_for_parent = false;
 }
 
 bool BrowserCompositorOutputSurface::BindToClient(

[danakj, 2015/03/25 17:40:38]

You can remove this function override then

[simonhong, 2015/03/25 18:05:22]

Done.

     cc::OutputSurfaceClient* client) {
   if (!OutputSurface::BindToClient(client))
     return false;
-  // Don't want vsync notifications until there is a client.
-  vsync_manager_->AddObserver(this);
   return true;
 }
 
-void BrowserCompositorOutputSurface::OnUpdateVSyncParameters(
+void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
     base::TimeTicks timebase,
     base::TimeDelta interval) {
   DCHECK(HasClient());
   CommitVSyncParameters(timebase, interval);
 }
 
-void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
-    base::TimeTicks timebase,
-    base::TimeDelta interval) {
-  DCHECK(HasClient());
-  vsync_manager_->UpdateVSyncParameters(timebase, interval);
-}
-
 void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
   reflector_ = reflector;
 }
 
 }  // namespace content