Deliver IPC messages together with SwapCompositorFrame

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 455ef027cbbf4ebd7b59a887c864c8410fad6bd9..0cae89dd21b369ae4e48126d7a8ab901537201ba 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1471,6 +1471,8 @@ bool RenderWidgetHostImpl::OnSwapCompositorFrame(
   scoped_ptr<cc::CompositorFrame> frame(new cc::CompositorFrame);
   uint32 output_surface_id = param.a;
   param.b.AssignTo(frame.get());
+  std::vector<IPC::Message> messages_to_deliver_with_frame;
+  messages_to_deliver_with_frame.swap(param.c);
 
   for (size_t i = 0; i < frame->metadata.latency_info.size(); i++)
     AddLatencyInfoComponentIds(&frame->metadata.latency_info[i]);
@@ -1496,6 +1498,16 @@ bool RenderWidgetHostImpl::OnSwapCompositorFrame(
     SendSwapCompositorFrameAck(routing_id_, output_surface_id,
                                process_->GetID(), ack);
   }
+
+  RenderProcessHost* rph = GetProcess();
+  for (std::vector<IPC::Message>::const_iterator i =
+           messages_to_deliver_with_frame.begin();
+       i != messages_to_deliver_with_frame.end();
+       ++i) {
+    rph->OnMessageReceived(*i);
+  }
+  messages_to_deliver_with_frame.clear();
+
   return true;
 }