Deliver IPC messages together with SwapCompositorFrame

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 17f98ad884980c6634a1c4c85656b22649f123ac..55d5fafc7f3e1b541e7c28941a47a7f30f916859 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -19,6 +19,7 @@
 #include "base/values.h"
 #include "cc/base/latency_info_swap_promise.h"
 #include "cc/base/latency_info_swap_promise_monitor.h"
+#include "cc/base/swap_promise.h"
 #include "cc/base/switches.h"
 #include "cc/debug/layer_tree_debug_state.h"
 #include "cc/debug/micro_benchmark.h"
@@ -396,6 +397,11 @@ RenderWidgetCompositor::CreateLatencyInfoSwapPromiseMonitor(
           latency, layer_tree_host_.get(), NULL));
 }
 
+void RenderWidgetCompositor::QueueSwapPromise(
+    scoped_ptr<cc::SwapPromise> promise) {
+  layer_tree_host_->QueueSwapPromise(promise.Pass());
+}
+
 int RenderWidgetCompositor::GetLayerTreeId() const {
   return layer_tree_host_->id();
 }