Report accelerated surface vsync time info to browser compositor.

content/common/gpu/image_transport_surface_win.cc

 // Copyright (c) 2012 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/common/gpu/image_transport_surface.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 189 matching lines @@
   params.size = GetSize();
   params.latency_info = latency_info_;
 
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
 
   DCHECK(!is_swap_buffers_pending_);
   is_swap_buffers_pending_ = true;
 }
 
 void PbufferImageTransportSurface::OnBufferPresented(
-    const AcceleratedSurfaceMsg_BufferPresented_Params& /* params */) {
+    const AcceleratedSurfaceMsg_BufferPresented_Params& params) {
+  helper_->SendUpdateVSyncParameters(params.vsync_timebase,
+                                     params.vsync_interval);
   is_swap_buffers_pending_ = false;
   if (did_unschedule_) {
     did_unschedule_ = false;
     helper_->SetScheduled(true);
   }
 }
 
 void PbufferImageTransportSurface::OnResizeViewACK() {
   NOTREACHED();
 }
@@ skipping 51 matching lines @@
 
   scoped_refptr<gfx::GLSurface> surface =
       gfx::GLSurface::CreateViewGLSurface(handle.handle);
   if (!surface)
     return surface;
   return scoped_refptr<gfx::GLSurface>(new PassThroughImageTransportSurface(
       manager, stub, surface.get(), handle.is_transport()));
 }
 
 }  // namespace content