Make OffscreenCanvas animation in sync with its placeholder canvas's parent frame rate

content/browser/renderer_host/offscreen_canvas_surface_factory_impl.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 "content/browser/renderer_host/offscreen_canvas_surface_factory_impl.h"
 
 #include "base/memory/ptr_util.h"
 #include "cc/surfaces/frame_sink_id.h"
 #include "content/browser/renderer_host/offscreen_canvas_surface_impl.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace content {
 
 // static
 void OffscreenCanvasSurfaceFactoryImpl::Create(
     blink::mojom::OffscreenCanvasSurfaceFactoryRequest request) {
   mojo::MakeStrongBinding(base::MakeUnique<OffscreenCanvasSurfaceFactoryImpl>(),
                           std::move(request));
 }
 
 void OffscreenCanvasSurfaceFactoryImpl::CreateOffscreenCanvasSurface(
+    const cc::FrameSinkId& parent_frame_sink_id,
     const cc::FrameSinkId& frame_sink_id,
     blink::mojom::OffscreenCanvasSurfaceClientPtr client,
     blink::mojom::OffscreenCanvasSurfaceRequest request) {
-  OffscreenCanvasSurfaceImpl::Create(frame_sink_id, std::move(client),
-                                     std::move(request));
+  OffscreenCanvasSurfaceImpl::Create(parent_frame_sink_id, frame_sink_id,
+                                     std::move(client), std::move(request));
 }
 
 }  // namespace content