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 65667d802e9c5b95d49c9b08054c0563bd49f3d0..b53742920d21d68e629cde9fa8734d4650e984e3 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 {
@@ -75,6 +76,12 @@ void SyntheticGestureTargetBase::DispatchInputEventToPlatform(
           PointIsWithinContents(web_mouse.x, web_mouse.y))
         << "Mouse pointer is not within content bounds on MouseDown.";
     DispatchWebMouseEventToPlatform(web_mouse, latency_info);
+  } else if (event.type() == WebInputEvent::GestureFlingStart) {
+    const WebGestureEvent& gesture_event =
+        static_cast<const WebGestureEvent&>(event);
+    CHECK(gesture_event.sourceDevice == blink::WebGestureDeviceTouchpad)
+        << "The gesture event source must be touchpad.";
+    DispatchTouchpadGestureFlingStartToPlatform(gesture_event, latency_info);
   } else {
     NOTREACHED();
   }
@@ -101,6 +108,14 @@ 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.type(), WebInputEvent::GestureFlingStart);
+  DCHECK_EQ(web_gesture.sourceDevice, blink::WebGestureDeviceTouchpad);
+  host_->ForwardGestureEventWithLatencyInfo(web_gesture, latency_info);
+}
+
 void SyntheticGestureTargetBase::SetNeedsFlush() {
   host_->SetNeedsFlush();
 }