Add CCDelegatingRenderer, and corresponding IPCs

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index a590fd7651d3557fdba3279b0a49084723275d96..02361e2951a36b080f4ceba850a409c89a548174 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -861,6 +861,26 @@ void RenderWidgetHostViewAura::AcceleratedSurfaceRelease(
   image_transport_clients_.erase(surface_handle);
 }
 
+void RenderWidgetHostViewAura::SwapCompositorFrame(
+    const WebKit::WebCompositorFrame& frame) {
+  ui::Compositor* compositor = GetCompositor();
+  if (!compositor) {
+    SwapCompositorFrameAck(NULL);
+  } else {
+    on_compositing_did_commit_callbacks_.push_back(
+        base::Bind(&RenderWidgetHostViewAura::SwapCompositorFrameAck,
+                   base::Unretained(this)));
+    if (!compositor->HasObserver(this))
+      compositor->AddObserver(this);
+    compositor->ScheduleDraw();
+  }
+}
+
+void RenderWidgetHostViewAura::SwapCompositorFrameAck(ui::Compositor*) {
+  WebKit::WebCompositorFrameAck ack;
+  host_->SwapCompositorFrameAck(ack);
+}
+
 void RenderWidgetHostViewAura::SetSurfaceNotInUseByCompositor(ui::Compositor*) {
   if (current_surface_ || !host_->is_hidden())
     return;