Send input event's LatencyInfo back from renderer to browser when acked

content/browser/renderer_host/input/touch_event_queue.h

Index: content/browser/renderer_host/input/touch_event_queue.h
diff --git a/content/browser/renderer_host/input/touch_event_queue.h b/content/browser/renderer_host/input/touch_event_queue.h
index 7d623442936ac33e5d9c92935bd9767a5efb3863..29d5477181aeeca6f4109e2b25c581e6a59a6d58 100644
--- a/content/browser/renderer_host/input/touch_event_queue.h
+++ b/content/browser/renderer_host/input/touch_event_queue.h
@@ -49,7 +49,8 @@ class TouchEventQueue {
   // Notifies the queue that a touch-event has been processed by the renderer.
   // At this point, the queue may send one or more gesture events and/or
   // additional queued touch-events to the renderer.
-  void ProcessTouchAck(InputEventAckState ack_result);
+  void ProcessTouchAck(InputEventAckState ack_result,
+                       const ui::LatencyInfo& latency_info);
 
   // Empties the queue of touch events. This may result in any number of gesture
   // events being sent to the renderer.
@@ -68,7 +69,8 @@ class TouchEventQueue {
 
   // Pops the touch-event from the top of the queue and sends it to the
   // TouchEventQueueClient. This reduces the size of the queue by one.
-  void PopTouchEventWithAck(InputEventAckState ack_result);
+  void PopTouchEventToClient(InputEventAckState ack_result,
+                             const ui::LatencyInfo& renderer_latency_info);
 
   bool ShouldForwardToRenderer(const WebKit::WebTouchEvent& event) const;