gpu benchmarking swipe for touchpad

content/browser/renderer_host/input/synthetic_gesture_target_base.cc

Index: content/browser/renderer_host/input/synthetic_gesture_target_base.cc
diff --git a/content/browser/renderer_host/input/synthetic_gesture_target_base.cc b/content/browser/renderer_host/input/synthetic_gesture_target_base.cc
index 2974e36da807943da6d30c9bb03dcceb019416bc..a4b4fe8b578552b77dbdd9de565355a973bd3e13 100644
--- a/content/browser/renderer_host/input/synthetic_gesture_target_base.cc
+++ b/content/browser/renderer_host/input/synthetic_gesture_target_base.cc
@@ -18,6 +18,7 @@ using blink::WebTouchEvent;
 using blink::WebTouchPoint;
 using blink::WebMouseEvent;
 using blink::WebMouseWheelEvent;
+using blink::WebGestureEvent;
 
 namespace content {
 namespace {
@@ -77,6 +78,12 @@ void SyntheticGestureTargetBase::DispatchInputEventToPlatform(
                                 web_mouse.PositionInWidget().y))
         << "Mouse pointer is not within content bounds on MouseDown.";
     DispatchWebMouseEventToPlatform(web_mouse, latency_info);
+  } else if (event.GetType() == WebInputEvent::kGestureFlingStart) {
+    const WebGestureEvent& gesture_event =
+        static_cast<const WebGestureEvent&>(event);
+    CHECK(gesture_event.source_device == blink::kWebGestureDeviceTouchpad)
+        << "The gesture event source must be touchpad.";
+    DispatchTouchpadGestureFlingStartToPlatform(gesture_event, latency_info);
   } else {
     NOTREACHED();
   }
@@ -103,6 +110,14 @@ void SyntheticGestureTargetBase::DispatchWebMouseEventToPlatform(
   host_->ForwardMouseEventWithLatencyInfo(web_mouse, latency_info);
 }
 
+void SyntheticGestureTargetBase::DispatchTouchpadGestureFlingStartToPlatform(
+    const blink::WebGestureEvent& web_gesture,
+    const ui::LatencyInfo& latency_info) {
+  DCHECK_EQ(web_gesture.GetType(), WebInputEvent::kGestureFlingStart);
+  DCHECK_EQ(web_gesture.source_device, blink::kWebGestureDeviceTouchpad);
+  host_->ForwardGestureEventWithLatencyInfo(web_gesture, latency_info);
+}
+
 void SyntheticGestureTargetBase::SetNeedsFlush() {
   host_->SetNeedsFlush();
 }