gpu benchmarking swipe for touchpad

content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc

Index: content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc
diff --git a/content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc b/content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc
index 26ad746f86b71b5d95f761f6ebe5e5cf2f5240dc..f626ecd99562fcfbb6459b848b761023e9bab71e 100644
--- a/content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc
+++ b/content/browser/renderer_host/input/synthetic_smooth_move_gesture.cc
@@ -38,7 +38,8 @@ const int kDefaultSpeedInPixelsPerSec = 800;
 }  // namespace
 
 SyntheticSmoothMoveGestureParams::SyntheticSmoothMoveGestureParams()
-    : speed_in_pixels_s(kDefaultSpeedInPixelsPerSec),
+    : velocity(gfx::Vector2dF(0, 0)),
+      speed_in_pixels_s(kDefaultSpeedInPixelsPerSec),
       prevent_fling(true),
       add_slop(true) {}
 
@@ -177,18 +178,21 @@ void SyntheticSmoothMoveGesture::ForwardMouseWheelInputEvents(
         if (!IsLastMoveSegment()) {
           current_move_segment_total_delta_discrete_ = gfx::Vector2d();
           ComputeNextMoveSegment();
-          ForwardMouseWheelInputEvents(timestamp, target);
-        } else {
+        } else if (params_.prevent_fling) {
           state_ = DONE;
+        } else {
+          state_ = STOPPING;
         }
       }
     } break;
+    case STOPPING: {
+      gfx::Vector2d velocity_discrete = FloorTowardZero(params_.velocity);
+      ForwardTouchpadFlingEvent(target, velocity_discrete, timestamp);
+      state_ = DONE;
+    } break;
     case SETUP:
       NOTREACHED() << "State SETUP invalid for synthetic scroll using mouse "
                       "wheel input.";
-    case STOPPING:
-      NOTREACHED() << "State STOPPING invalid for synthetic scroll using mouse "
-                      "wheel input.";
     case DONE:
       NOTREACHED()
           << "State DONE invalid for synthetic scroll using mouse wheel input.";
@@ -253,6 +257,23 @@ void SyntheticSmoothMoveGesture::ForwardMouseWheelEvent(
   target->DispatchInputEventToPlatform(mouse_wheel_event);
 }
 
+void SyntheticSmoothMoveGesture::ForwardTouchpadFlingEvent(
+    SyntheticGestureTarget* target,
+    const gfx::Vector2dF& velocity,
+    const base::TimeTicks& timestamp) const {
+  blink::WebGestureEvent fling_event =
+      SyntheticWebGestureEventBuilder::BuildFling(
+          velocity.x(), velocity.y(),
+          blink::WebGestureDevice::WebGestureDeviceTouchpad);
+
+  fling_event.x = current_move_segment_start_position_.x();
+  fling_event.y = current_move_segment_start_position_.y();
+
+  fling_event.setTimeStampSeconds(ConvertTimestampToSeconds(timestamp));
+
+  target->DispatchInputEventToPlatform(fling_event);
+}
+
 void SyntheticSmoothMoveGesture::PressPoint(SyntheticGestureTarget* target,
                                             const base::TimeTicks& timestamp) {
   DCHECK_EQ(current_move_segment_, 0);