Set the unique_event_id when converting from TouchEvent to WebTouchEvent

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 a61b90d8eca8c1707d31b3e9bfbadabb175047a0..12945f63941577a752f9e9f127a4991281deaaf8 100644
--- a/content/browser/renderer_host/input/touch_event_queue.h
+++ b/content/browser/renderer_host/input/touch_event_queue.h
@@ -64,7 +64,8 @@ class CONTENT_EXPORT TouchEventQueue {
   // 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,
-                       const ui::LatencyInfo& latency_info);
+                       const ui::LatencyInfo& latency_info,
+                       uint64 unique_touch_event_id);
 
   // When GestureScrollBegin is received, we send a touch cancel to renderer,
   // route all the following touch events directly to client, and ignore the