Send idle notifications to V8 after commit

content/renderer/gpu/render_widget_compositor.h

Index: content/renderer/gpu/render_widget_compositor.h
diff --git a/content/renderer/gpu/render_widget_compositor.h b/content/renderer/gpu/render_widget_compositor.h
index 95f91792b84ee8ea465bd07b7ca490e1ff5b79e8..e4b3e30b66f9d71a4420d048b3697aaca4444175 100644
--- a/content/renderer/gpu/render_widget_compositor.h
+++ b/content/renderer/gpu/render_widget_compositor.h
@@ -12,6 +12,7 @@
 #include "cc/base/swap_promise.h"
 #include "cc/base/swap_promise_monitor.h"
 #include "cc/input/top_controls_state.h"
+#include "cc/output/begin_frame_args.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_single_thread_client.h"
 #include "cc/trees/layer_tree_settings.h"
@@ -156,6 +157,7 @@ class RenderWidgetCompositor : public blink::WebLayerTreeView,
   bool suppress_schedule_composite_;
   RenderWidget* widget_;
   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
+  cc::BeginFrameArgs begin_main_frame_args_;

[jamesr, 2014/08/20 19:38:41]

seems wasteful to keep a full BeginFrameArgs around only to grab two values off
of it. today BeginFrameArgs is pretty small, but I believe it'll get bigger and
it's unlikely someone will check this usage again as it does.  Can you just keep
the base::Time{Delta,Ticks} you need instead?

[ernstm, 2014/08/21 18:22:00]

Done.

 };
 
 }  // namespace content