Remove a number of unused features from WebViewImpl

sky/engine/platform/exported/WebActiveGestureAnimation.h

-/*
- * Copyright (C) 2012 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef SKY_ENGINE_PLATFORM_EXPORTED_WEBACTIVEGESTUREANIMATION_H_
-#define SKY_ENGINE_PLATFORM_EXPORTED_WEBACTIVEGESTUREANIMATION_H_
-
-#include "sky/engine/platform/PlatformExport.h"
-#include "sky/engine/wtf/Noncopyable.h"
-#include "sky/engine/wtf/OwnPtr.h"
-#include "sky/engine/wtf/PassOwnPtr.h"
-
-namespace blink {
-
-class WebGestureCurve;
-class WebGestureCurveTarget;
-
-// Implements a gesture animation (fling scroll, etc.) using a curve with a generic interface
-// to define the animation parameters as a function of time, and applies the animation
-// to a target, again via a generic interface. It is assumed that animate() is called
-// on a more-or-less regular basis by the owner.
-class PLATFORM_EXPORT WebActiveGestureAnimation {
-    WTF_MAKE_NONCOPYABLE(WebActiveGestureAnimation);
-public:
-    static PassOwnPtr<WebActiveGestureAnimation> createAtAnimationStart(PassOwnPtr<WebGestureCurve>, WebGestureCurveTarget*);
-    static PassOwnPtr<WebActiveGestureAnimation> createWithTimeOffset(PassOwnPtr<WebGestureCurve>, WebGestureCurveTarget*, double startTime);
-    ~WebActiveGestureAnimation();
-
-    bool animate(double time);
-
-private:
-    // Assumes a valid WebGestureCurveTarget that outlives the animation.
-    WebActiveGestureAnimation(PassOwnPtr<WebGestureCurve>, WebGestureCurveTarget*, double startTime, bool waitingForFirstTick);
-
-    double m_startTime;
-    bool m_waitingForFirstTick;
-    OwnPtr<WebGestureCurve> m_curve;
-    WebGestureCurveTarget* m_target;
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_PLATFORM_EXPORTED_WEBACTIVEGESTUREANIMATION_H_