CC Animation: Move files from cc_blink to Source/platform/animation

third_party/WebKit/Source/platform/animation/CompositorFloatAnimationCurve.h

+// Copyright 2016 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 CompositorFloatAnimationCurve_h
+#define CompositorFloatAnimationCurve_h
+
+#include "base/memory/scoped_ptr.h"
+#include "platform/PlatformExport.h"
+#include "platform/animation/CompositorAnimationCurve.h"
+#include "platform/animation/CompositorFloatKeyframe.h"
+#include "wtf/Noncopyable.h"
+
+namespace cc {
+class AnimationCurve;
+class KeyframedFloatAnimationCurve;
+}
+
+namespace blink {
+struct CompositorFloatKeyframe;
+}
+
+namespace blink {
+
+// A keyframed float animation curve.
+class PLATFORM_EXPORT CompositorFloatAnimationCurve : public CompositorAnimationCurve {
+    WTF_MAKE_NONCOPYABLE(CompositorFloatAnimationCurve);
+public:
+    CompositorFloatAnimationCurve();
+    ~CompositorFloatAnimationCurve() override;
+
+    // Adds the keyframe with the default timing function (ease).
+    virtual void add(const CompositorFloatKeyframe&);
+    virtual void add(const CompositorFloatKeyframe&, TimingFunctionType);
+    // Adds the keyframe with a custom, bezier timing function. Note, it is
+    // assumed that x0 = y0 , and x3 = y3 = 1.
+    virtual void add(const CompositorFloatKeyframe&, double x1, double y1, double x2, double y2);
+    // Adds the keyframe with a steps timing function.
+    virtual void add(const CompositorFloatKeyframe&, int steps, float stepsStartOffset);
+
+    virtual void setLinearTimingFunction();
+    virtual void setCubicBezierTimingFunction(TimingFunctionType);
+    virtual void setCubicBezierTimingFunction(double x1, double y1, double x2, double y2);
+    virtual void setStepsTimingFunction(int numberOfSteps, float stepsStartOffset);
+
+    virtual float getValue(double time) const;
+
+    // CompositorAnimationCurve implementation.
+    AnimationCurveType type() const override;
+
+    scoped_ptr<cc::AnimationCurve> cloneToAnimationCurve() const;
+
+private:
+    scoped_ptr<cc::KeyframedFloatAnimationCurve> m_curve;
+};
+
+} // namespace blink
+
+#endif // CompositorFloatAnimationCurve_h