Plumb LatencyInfo through aura.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 467 matching lines @@
   // Indicates whether the renderer drives the RenderWidgetHosts's size or the
   // other way around.
   bool should_auto_resize() { return should_auto_resize_; }
 
   void FrameSwapped(const ui::LatencyInfo& latency_info);
 
   // Returns the ID that uniquely describes this component to the latency
   // subsystem.
   int64 GetLatencyComponentId();
 
+  static void CompositorFrameDrawn(const ui::LatencyInfo& latency_info);
+
  protected:
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() OVERRIDE;
 
   // Transmits the given input event. This is an internal helper for
   // |ForwardInputEvent()| and should not be used directly from elsewhere.
   void SendInputEvent(const WebKit::WebInputEvent& input_event,
                       int event_size, const ui::LatencyInfo& latency_info,
                       bool is_keyboard_shortcut);
 
   // Internal implementation of the public Forward*Event() methods.
@@ skipping 417 matching lines @@
   std::queue<base::Callback<void(bool, const SkBitmap&)> > pending_snapshots_;
 
   int64 last_input_number_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_