Update cc snapshot to r127918

webkit/compositor_bindings/WheelFlingPlatformGestureCurve.h

-// Copyright 2012 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.
-
-#ifndef WheelFlingPlatformGestureCurve_h
-#define WheelFlingPlatformGestureCurve_h
-
-#include "FloatPoint.h"
-#include "PlatformGestureCurve.h"
-#include <wtf/OwnPtr.h>
-#include <wtf/PassOwnPtr.h>
-
-namespace WebCore {
-
-class PlatformGestureCurveTarget;
-
-// Implementation of PlatformGestureCurve suitable for mouse wheel-based fling
-// scroll. A Rayleigh distribtution curve is used to define the velocity profile,
-// so velocity starts at zero, accelerates to a maximum proportional to 'velocity',
-// then gently tails off to zero again.
-class WheelFlingPlatformGestureCurve : public PlatformGestureCurve {
-public:
-    static PassOwnPtr<PlatformGestureCurve> create(const FloatPoint& velocity);
-    virtual ~WheelFlingPlatformGestureCurve();
-
-    virtual const char* debugName() const OVERRIDE;
-    virtual bool apply(double time, PlatformGestureCurveTarget*) OVERRIDE;
-
-private:
-    explicit WheelFlingPlatformGestureCurve(const FloatPoint& velocity);
-
-    FloatPoint m_velocity;
-    IntPoint m_cumulativeScroll;
-};
-
-} // namespace WebCore
-
-#endif