Fix reporting of TouchToFirstScroll latency metrics

content/browser/renderer_host/input/mouse_wheel_event_queue.h

 // Copyright 2016 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_INPUT_MOUSE_WHEEL_EVENT_QUEUE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_MOUSE_WHEEL_EVENT_QUEUE_H_
 
 #include <deque>
 
 #include "base/time/time.h"
@@ skipping 13 matching lines @@
 class QueuedWebMouseWheelEvent;
 
 // Interface with which MouseWheelEventQueue can forward mouse wheel events,
 // and dispatch mouse wheel event responses.
 class CONTENT_EXPORT MouseWheelEventQueueClient {
  public:
   virtual ~MouseWheelEventQueueClient() {}
 
   virtual void SendMouseWheelEventImmediately(
       const MouseWheelEventWithLatencyInfo& event) = 0;
-  virtual void ForwardGestureEvent(const blink::WebGestureEvent& event) = 0;
+  virtual void ForwardGestureEventWithLatencyInfo(
+      const blink::WebGestureEvent& event,
+      const ui::LatencyInfo& latency_info) = 0;
   virtual void OnMouseWheelEventAck(const MouseWheelEventWithLatencyInfo& event,
                                     InputEventAckState ack_result) = 0;
 };
 
 // A queue for throttling and coalescing mouse wheel events.
 class CONTENT_EXPORT MouseWheelEventQueue {
  public:
   // The |client| must outlive the MouseWheelEventQueue. |send_gestures|
   // indicates whether mouse wheel events should generate
   // Scroll[Begin|Update|End] on unhandled acknowledge events.
@@ skipping 54 matching lines @@
   bool send_gestures_;
   int64_t scroll_transaction_ms_;
   blink::WebGestureDevice scrolling_device_;
 
   DISALLOW_COPY_AND_ASSIGN(MouseWheelEventQueue);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_MOUSE_WHEEL_EVENT_QUEUE_H_