Define WebScrollOffsetAnimationCurveImpl

webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h

Index: webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h
diff --git a/webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h b/webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..ae1c8b075f21287f02b4b94d89e16a4c638fa04a
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+++ b/webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h
@@ -0,0 +1,51 @@
+// 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 WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
+#define WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
+
+#include "third_party/WebKit/public/platform/WebAnimationCurve.h"
+
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+
+#include "base/memory/scoped_ptr.h"
+#include "third_party/WebKit/public/platform/WebScrollOffsetAnimationCurve.h"
+#include "webkit/renderer/compositor_bindings/webkit_compositor_bindings_export.h"
+
+namespace cc {
+class AnimationCurve;
+class ScrollOffsetAnimationCurve;
+}
+
+namespace webkit {
+
+class WebScrollOffsetAnimationCurveImpl
+    : public blink::WebScrollOffsetAnimationCurve {
+ public:
+  WEBKIT_COMPOSITOR_BINDINGS_EXPORT WebScrollOffsetAnimationCurveImpl(
+      blink::WebFloatPoint target_value,
+      TimingFunctionType timing_function);
+  virtual ~WebScrollOffsetAnimationCurveImpl();
+
+  // blink::WebAnimationCurve implementation.
+  virtual AnimationCurveType type() const;
+
+  // blink::WebScrollOffsetAnimationCurve implementation.
+  virtual void setInitialValue(blink::WebFloatPoint initial_value);
+  virtual blink::WebFloatPoint getValue(double time) const;
+  virtual double duration() const;
+
+  scoped_ptr<cc::AnimationCurve> CloneToAnimationCurve() const;
+
+ private:
+  scoped_ptr<cc::ScrollOffsetAnimationCurve> curve_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebScrollOffsetAnimationCurveImpl);
+};
+
+}  // namespace webkit
+
+#endif  // WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+
+#endif  // WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_