Remove a number of unused features from WebViewImpl

sky/engine/public/platform/Platform.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 
 namespace blink {
 
 class WebBlobRegistry;
 class WebClipboard;
 class WebCompositorSupport;
 class WebConvertableToTraceFormat;
 class WebDiscardableMemory;
 class WebFallbackThemeEngine;
 class WebFlingAnimator;
-class WebGestureCurveTarget;
-class WebGestureCurve;
 class WebGraphicsContext3DProvider;
 class WebSandboxSupport;
 struct WebFloatPoint;
 class WebURL;
 class WebURLLoader;
 class WebUnitTestSupport;
 struct WebLocalizedString;
 struct WebSize;
 
 class Platform {
@@ skipping 274 matching lines @@
     //
     // This value must be checked again after a context loss event as the platform's capabilities may have changed.
     virtual bool canAccelerate2dCanvas() { return false; }
 
     virtual bool isThreadedCompositingEnabled() { return false; }
 
     virtual WebCompositorSupport* compositorSupport() { return 0; }
 
     virtual WebFlingAnimator* createFlingAnimator() { return 0; }
 
-    // Creates a new fling animation curve instance for device |deviceSource|
-    // with |velocity| and already scrolled |cumulativeScroll| pixels.
-    virtual WebGestureCurve* createFlingAnimationCurve(WebGestureDevice deviceSource, const WebFloatPoint& velocity, const WebSize& cumulativeScroll) { return 0; }
-
 protected:
     virtual ~Platform() { }
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PUBLIC_PLATFORM_PLATFORM_H_