Early terminate flings when scrolling impossible

content/test/web_gesture_curve_mock.cc

 // Copyright 2013 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.
 
 #include "content/test/web_gesture_curve_mock.h"
 
 #include "content/test/weburl_loader_mock_factory.h"
 #include "third_party/WebKit/public/platform/WebFloatSize.h"
 #include "third_party/WebKit/public/platform/WebGestureCurveTarget.h"
 
 WebGestureCurveMock::WebGestureCurveMock(const blink::WebFloatPoint& velocity,
     const blink::WebSize& cumulative_scroll)
     : velocity_(velocity),
       cumulative_scroll_(cumulative_scroll) {
 }
 
 WebGestureCurveMock::~WebGestureCurveMock() {
 }
 
 bool WebGestureCurveMock::apply(double time,
                                 blink::WebGestureCurveTarget* target) {
   blink::WebSize displacement(velocity_.x * time, velocity_.y * time);
   blink::WebFloatSize increment(displacement.width - cumulative_scroll_.width,
       displacement.height - cumulative_scroll_.height);
   cumulative_scroll_ = displacement;
-  target->notifyCurrentFlingVelocity(blink::WebFloatSize(velocity_.x,
-                                                          velocity_.y));
+  blink::WebFloatSize velocity(velocity_.x, velocity_.y);
   // scrollBy() could delete this curve if the animation is over, so don't
   // touch any member variables after making that call.
-  target->scrollBy(increment);
+  target->scrollBy(increment, velocity);
   return true;
 }