gpu benchmarking swipe for touchpad

content/browser/renderer_host/input/synthetic_gesture_target_base.h

Index: content/browser/renderer_host/input/synthetic_gesture_target_base.h
diff --git a/content/browser/renderer_host/input/synthetic_gesture_target_base.h b/content/browser/renderer_host/input/synthetic_gesture_target_base.h
index 3d01549cbd38bc6595d5b6c960e8a03ac9c60f32..b6ba88fead43dd16def5fcdb275e1f706c8e1274 100644
--- a/content/browser/renderer_host/input/synthetic_gesture_target_base.h
+++ b/content/browser/renderer_host/input/synthetic_gesture_target_base.h
@@ -17,6 +17,7 @@ namespace blink {
 class WebTouchEvent;
 class WebMouseEvent;
 class WebMouseWheelEvent;
+class WebGestureEvent;
 }
 
 namespace content {
@@ -40,6 +41,10 @@ class SyntheticGestureTargetBase : public SyntheticGestureTarget {
       const blink::WebMouseEvent& web_mouse,
       const ui::LatencyInfo& latency_info);
 
+  virtual void DispatchTouchpadGestureFlingStartToPlatform(
+      const blink::WebGestureEvent& web_gesture,
+      const ui::LatencyInfo& latency_info);
+
   // SyntheticGestureTarget:
   void DispatchInputEventToPlatform(const blink::WebInputEvent& event) override;