Plumb cc::LatencyInfo through command buffer and output surface

content/common/gpu/image_transport_surface_win.cc

Index: content/common/gpu/image_transport_surface_win.cc
diff --git a/content/common/gpu/image_transport_surface_win.cc b/content/common/gpu/image_transport_surface_win.cc
index f6c3a13acac8da5ce5f65890fc5d7bd60c86a5cf..5dbdcf32db74712d0fe1723805c3b2cd344658b5 100644
--- a/content/common/gpu/image_transport_surface_win.cc
+++ b/content/common/gpu/image_transport_surface_win.cc
@@ -48,6 +48,7 @@ class PbufferImageTransportSurface
       const AcceleratedSurfaceMsg_BufferPresented_Params& params) OVERRIDE;
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
+  virtual void SetLatencyInfo(const cc::LatencyInfo&) OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
 
  private:
@@ -68,6 +69,8 @@ class PbufferImageTransportSurface
   // Size to resize to when the surface becomes visible.
   gfx::Size visible_size_;
 
+  cc::LatencyInfo latency_info_;
+
   scoped_ptr<ImageTransportHelper> helper_;
 
   DISALLOW_COPY_AND_ASSIGN(PbufferImageTransportSurface);
@@ -195,6 +198,7 @@ void PbufferImageTransportSurface::SendBuffersSwapped() {
   params.surface_handle = reinterpret_cast<int64>(GetShareHandle());
   CHECK(params.surface_handle);
   params.size = GetSize();
+  params.latency_info = latency_info_;
 
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
 
@@ -225,6 +229,11 @@ void PbufferImageTransportSurface::OnResize(gfx::Size size) {
   visible_size_ = size;
 }
 
+void PbufferImageTransportSurface::SetLatencyInfo(
+    const cc::LatencyInfo& latency_info) {
+  latency_info_ = latency_info;
+}
+
 gfx::Size PbufferImageTransportSurface::GetSize() {
   return GLSurfaceAdapter::GetSize();
 }