Remove parts of //cc we aren't using

cc/animation/animation_curve.h

-// Copyright 2012 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 CC_ANIMATION_ANIMATION_CURVE_H_
-#define CC_ANIMATION_ANIMATION_CURVE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-#include "cc/base/cc_export.h"
-#include "cc/output/filter_operations.h"
-#include "ui/gfx/transform.h"
-
-namespace gfx {
-class BoxF;
-}
-
-namespace cc {
-
-class ColorAnimationCurve;
-class FilterAnimationCurve;
-class FloatAnimationCurve;
-class ScrollOffsetAnimationCurve;
-class TransformAnimationCurve;
-class TransformOperations;
-
-// An animation curve is a function that returns a value given a time.
-class CC_EXPORT AnimationCurve {
- public:
-  enum CurveType { COLOR, FLOAT, TRANSFORM, FILTER, SCROLL_OFFSET };
-
-  virtual ~AnimationCurve() {}
-
-  virtual base::TimeDelta Duration() const = 0;
-  virtual CurveType Type() const = 0;
-  virtual scoped_ptr<AnimationCurve> Clone() const = 0;
-
-  const ColorAnimationCurve* ToColorAnimationCurve() const;
-  const FloatAnimationCurve* ToFloatAnimationCurve() const;
-  const TransformAnimationCurve* ToTransformAnimationCurve() const;
-  const FilterAnimationCurve* ToFilterAnimationCurve() const;
-  const ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve() const;
-
-  ScrollOffsetAnimationCurve* ToScrollOffsetAnimationCurve();
-};
-
-class CC_EXPORT ColorAnimationCurve : public AnimationCurve {
- public:
-  ~ColorAnimationCurve() override {}
-
-  virtual SkColor GetValue(base::TimeDelta t) const = 0;
-
-  // Partial Animation implementation.
-  CurveType Type() const override;
-};
-
-class CC_EXPORT FloatAnimationCurve : public AnimationCurve {
- public:
-  ~FloatAnimationCurve() override {}
-
-  virtual float GetValue(base::TimeDelta t) const = 0;
-
-  // Partial Animation implementation.
-  CurveType Type() const override;
-};
-
-class CC_EXPORT TransformAnimationCurve : public AnimationCurve {
- public:
-  ~TransformAnimationCurve() override {}
-
-  virtual gfx::Transform GetValue(base::TimeDelta t) const = 0;
-
-  // Sets |bounds| to be the bounding box for the region within which |box|
-  // will move during this animation. If this region cannot be computed,
-  // returns false.
-  virtual bool AnimatedBoundsForBox(const gfx::BoxF& box,
-                                    gfx::BoxF* bounds) const = 0;
-
-  // Returns true if this animation affects scale.
-  virtual bool AffectsScale() const = 0;
-
-  // Returns true if this animation is a translation.
-  virtual bool IsTranslation() const = 0;
-
-  // Returns true if this animation preserves axis alignment.
-  virtual bool PreservesAxisAlignment() const = 0;
-
-  // Set |max_scale| to the maximum scale along any dimension at the end of
-  // intermediate animation target points (eg keyframe end points). When
-  // |forward_direction| is true, the animation curve assumes it plays from
-  // the first keyframe to the last, otherwise it assumes the opposite. Returns
-  // false if the maximum scale cannot be computed.
-  virtual bool MaximumTargetScale(bool forward_direction,
-                                  float* max_scale) const = 0;
-
-  // Partial Animation implementation.
-  CurveType Type() const override;
-};
-
-class CC_EXPORT FilterAnimationCurve : public AnimationCurve {
- public:
-  ~FilterAnimationCurve() override {}
-
-  virtual FilterOperations GetValue(base::TimeDelta t) const = 0;
-  virtual bool HasFilterThatMovesPixels() const = 0;
-
-  // Partial Animation implementation.
-  CurveType Type() const override;
-};
-
-}  // namespace cc
-
-#endif  // CC_ANIMATION_ANIMATION_CURVE_H_