Make Keyframe use TimeTicks/TimeDelta to represent time instead of double.

cc/animation/keyframed_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_KEYFRAMED_ANIMATION_CURVE_H_
 #define CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_
 
 #include "base/time/time.h"
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/timing_function.h"
 #include "cc/animation/transform_operations.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_vector.h"
 
 namespace cc {
 
 class CC_EXPORT Keyframe {
  public:
-  double Time() const;
+  base::TimeDelta Time() const;
   const TimingFunction* timing_function() const {
     return timing_function_.get();
   }
 
  protected:
-  Keyframe(double time, scoped_ptr<TimingFunction> timing_function);
+  Keyframe(base::TimeDelta time, scoped_ptr<TimingFunction> timing_function);
   virtual ~Keyframe();
 
  private:
-  double time_;
+  base::TimeDelta time_;
   scoped_ptr<TimingFunction> timing_function_;
 
   DISALLOW_COPY_AND_ASSIGN(Keyframe);
 };
 
 class CC_EXPORT ColorKeyframe : public Keyframe {
  public:
   static scoped_ptr<ColorKeyframe> Create(
-      double time,
+      base::TimeDelta time,
       SkColor value,
       scoped_ptr<TimingFunction> timing_function);
   ~ColorKeyframe() override;
 
   SkColor Value() const;
 
   scoped_ptr<ColorKeyframe> Clone() const;
 
  private:
-  ColorKeyframe(double time,
+  ColorKeyframe(base::TimeDelta time,
                 SkColor value,
                 scoped_ptr<TimingFunction> timing_function);
 
   SkColor value_;
 };
 
 class CC_EXPORT FloatKeyframe : public Keyframe {
  public:
   static scoped_ptr<FloatKeyframe> Create(
-      double time,
+      base::TimeDelta time,
       float value,
       scoped_ptr<TimingFunction> timing_function);
   ~FloatKeyframe() override;
 
   float Value() const;
 
   scoped_ptr<FloatKeyframe> Clone() const;
 
  private:
-  FloatKeyframe(double time,
+  FloatKeyframe(base::TimeDelta time,
                 float value,
                 scoped_ptr<TimingFunction> timing_function);
 
   float value_;
 };
 
 class CC_EXPORT TransformKeyframe : public Keyframe {
  public:
   static scoped_ptr<TransformKeyframe> Create(
-      double time,
+      base::TimeDelta time,
       const TransformOperations& value,
       scoped_ptr<TimingFunction> timing_function);
   ~TransformKeyframe() override;
 
   const TransformOperations& Value() const;
 
   scoped_ptr<TransformKeyframe> Clone() const;
 
  private:
-  TransformKeyframe(
-      double time,
-      const TransformOperations& value,
-      scoped_ptr<TimingFunction> timing_function);
+  TransformKeyframe(base::TimeDelta time,
+                    const TransformOperations& value,
+                    scoped_ptr<TimingFunction> timing_function);
 
   TransformOperations value_;
 };
 
 class CC_EXPORT FilterKeyframe : public Keyframe {
  public:
   static scoped_ptr<FilterKeyframe> Create(
-      double time,
+      base::TimeDelta time,
       const FilterOperations& value,
       scoped_ptr<TimingFunction> timing_function);
   ~FilterKeyframe() override;
 
   const FilterOperations& Value() const;
 
   scoped_ptr<FilterKeyframe> Clone() const;
 
  private:
-  FilterKeyframe(
-      double time,
-      const FilterOperations& value,
-      scoped_ptr<TimingFunction> timing_function);
+  FilterKeyframe(base::TimeDelta time,
+                 const FilterOperations& value,
+                 scoped_ptr<TimingFunction> timing_function);
 
   FilterOperations value_;
 };
 
 class CC_EXPORT KeyframedColorAnimationCurve : public ColorAnimationCurve {
  public:
   // It is required that the keyframes be sorted by time.
   static scoped_ptr<KeyframedColorAnimationCurve> Create();
 
   ~KeyframedColorAnimationCurve() override;
 
   void AddKeyframe(scoped_ptr<ColorKeyframe> keyframe);
   void SetTimingFunction(scoped_ptr<TimingFunction> timing_function) {
     timing_function_ = timing_function.Pass();
   }
 
   // AnimationCurve implementation
   base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
 
   // BackgrounColorAnimationCurve implementation
-  SkColor GetValue(double t) const override;
+  SkColor GetValue(base::TimeDelta t) const override;
 
  private:
   KeyframedColorAnimationCurve();
 
   // Always sorted in order of increasing time. No two keyframes have the
   // same time.
   ScopedPtrVector<ColorKeyframe> keyframes_;
   scoped_ptr<TimingFunction> timing_function_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyframedColorAnimationCurve);
 };
 
 class CC_EXPORT KeyframedFloatAnimationCurve : public FloatAnimationCurve {
  public:
   // It is required that the keyframes be sorted by time.
   static scoped_ptr<KeyframedFloatAnimationCurve> Create();
 
   ~KeyframedFloatAnimationCurve() override;
 
   void AddKeyframe(scoped_ptr<FloatKeyframe> keyframe);
   void SetTimingFunction(scoped_ptr<TimingFunction> timing_function) {
     timing_function_ = timing_function.Pass();
   }
 
   // AnimationCurve implementation
   base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
 
   // FloatAnimationCurve implementation
-  float GetValue(double t) const override;
+  float GetValue(base::TimeDelta t) const override;
 
  private:
   KeyframedFloatAnimationCurve();
 
   // Always sorted in order of increasing time. No two keyframes have the
   // same time.
   ScopedPtrVector<FloatKeyframe> keyframes_;
   scoped_ptr<TimingFunction> timing_function_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyframedFloatAnimationCurve);
@@ skipping 10 matching lines @@
   void AddKeyframe(scoped_ptr<TransformKeyframe> keyframe);
   void SetTimingFunction(scoped_ptr<TimingFunction> timing_function) {
     timing_function_ = timing_function.Pass();
   }
 
   // AnimationCurve implementation
   base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
 
   // TransformAnimationCurve implementation
-  gfx::Transform GetValue(double t) const override;
+  gfx::Transform GetValue(base::TimeDelta t) const override;
   bool AnimatedBoundsForBox(const gfx::BoxF& box,
                             gfx::BoxF* bounds) const override;
   bool AffectsScale() const override;
   bool IsTranslation() const override;
   bool MaximumTargetScale(bool forward_direction,
                           float* max_scale) const override;
 
  private:
   KeyframedTransformAnimationCurve();
 
@@ skipping 16 matching lines @@
   void AddKeyframe(scoped_ptr<FilterKeyframe> keyframe);
   void SetTimingFunction(scoped_ptr<TimingFunction> timing_function) {
     timing_function_ = timing_function.Pass();
   }
 
   // AnimationCurve implementation
   base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
 
   // FilterAnimationCurve implementation
-  FilterOperations GetValue(double t) const override;
+  FilterOperations GetValue(base::TimeDelta t) const override;
   bool HasFilterThatMovesPixels() const override;
 
  private:
   KeyframedFilterAnimationCurve();
 
   // Always sorted in order of increasing time. No two keyframes have the
   // same time.
   ScopedPtrVector<FilterKeyframe> keyframes_;
   scoped_ptr<TimingFunction> timing_function_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyframedFilterAnimationCurve);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_KEYFRAMED_ANIMATION_CURVE_H_