Add CCDelegatingRenderer, and corresponding IPCs

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 31906ffe23fd6825138234d6c2ce4015e0f07682..b2617567daaea87b02cf15c1e5eeab10e1c988d2 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -302,6 +302,8 @@ bool RenderWidgetHostImpl::OnMessageReceived(const IPC::Message &msg) {
                         OnMsgDidActivateAcceleratedCompositing)
     IPC_MESSAGE_HANDLER(ViewHostMsg_LockMouse, OnMsgLockMouse)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UnlockMouse, OnMsgUnlockMouse)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_SwapCompositorFrame,
+                        OnMsgSwapCompositorFrame)
 #if defined(OS_POSIX) || defined(USE_AURA)
     IPC_MESSAGE_HANDLER(ViewHostMsg_GetWindowRect, OnMsgGetWindowRect)
     IPC_MESSAGE_HANDLER(ViewHostMsg_GetRootWindowRect, OnMsgGetRootWindowRect)
@@ -1738,6 +1740,20 @@ void RenderWidgetHostImpl::OnMsgUnlockMouse() {
   RejectMouseLockOrUnlockIfNecessary();
 }
 
+void RenderWidgetHostImpl::OnMsgSwapCompositorFrame(
+    const WebKit::WebCompositorFrame& frame) {
+  if (!view_) {
+    WebKit::WebCompositorFrameAck ack;
+    SwapCompositorFrameAck(ack);
+  }
+  view_->SwapCompositorFrame(frame);
+}
+
+void RenderWidgetHostImpl::SwapCompositorFrameAck(
+    const WebKit::WebCompositorFrameAck& ack) {
+  Send(new ViewMsg_SwapCompositorFrameACK(routing_id_, ack));
+}
+
 #if defined(OS_POSIX) || defined(USE_AURA)
 void RenderWidgetHostImpl::OnMsgGetWindowRect(gfx::NativeViewId window_id,
                                               gfx::Rect* results) {