Break Sky's dependency on cc

sky/viewer/cc/web_transform_animation_curve_impl.h

-// Copyright 2014 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 SKY_VIEWER_CC_WEB_TRANSFORM_ANIMATION_CURVE_IMPL_H_
-#define SKY_VIEWER_CC_WEB_TRANSFORM_ANIMATION_CURVE_IMPL_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "sky/viewer/cc/sky_viewer_cc_export.h"
-#include "sky/engine/public/platform/WebTransformAnimationCurve.h"
-
-namespace cc {
-class AnimationCurve;
-class KeyframedTransformAnimationCurve;
-}
-
-namespace blink {
-class WebTransformKeyframe;
-}
-
-namespace sky_viewer_cc {
-
-class WebTransformAnimationCurveImpl
-    : public blink::WebTransformAnimationCurve {
- public:
-  SKY_VIEWER_CC_EXPORT WebTransformAnimationCurveImpl();
-  virtual ~WebTransformAnimationCurveImpl();
-
-  // blink::WebCompositorAnimationCurve implementation.
-  virtual AnimationCurveType type() const;
-
-  // blink::WebTransformAnimationCurve implementation.
-  virtual void add(const blink::WebTransformKeyframe& keyframe);
-  virtual void add(const blink::WebTransformKeyframe& keyframe,
-                   TimingFunctionType type);
-  virtual void add(const blink::WebTransformKeyframe& keyframe,
-                   double x1,
-                   double y1,
-                   double x2,
-                   double y2);
-
-  scoped_ptr<cc::AnimationCurve> CloneToAnimationCurve() const;
-
- private:
-  scoped_ptr<cc::KeyframedTransformAnimationCurve> curve_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebTransformAnimationCurveImpl);
-};
-
-}  // namespace sky_viewer_cc
-
-#endif  // SKY_VIEWER_CC_WEB_TRANSFORM_ANIMATION_CURVE_IMPL_H_