Make cc::Animation::TrimTimeToCurrentIteration and

cc::AnimationCurve::Duration use TimeTicks/TimeDelta to represent time.

This patch adds a new file time_util.h which adds new class TimeUtil.
This TimeUtil class holds helper functions to operate on TimeDelta
in double because base::TimeDelta class doesnot allow
multiply/divide operations in double.

Review URL: https://codereview.chromium.org/693883004

Cr-Commit-Position: refs/heads/master@{#303790}

4 files changed, 9 insertions, 9 deletions

diff --git a/ui/compositor/float_animation_curve_adapter.cc b/ui/compositor/float_animation_curve_adapter.cc
index 308fc1e..3b5e155 100644
--- a/ui/compositor/float_animation_curve_adapter.cc
+++ b/ui/compositor/float_animation_curve_adapter.cc
@@ -17,8 +17,8 @@ FloatAnimationCurveAdapter::FloatAnimationCurveAdapter(
       duration_(duration) {
 }
 
-double FloatAnimationCurveAdapter::Duration() const {
-  return duration_.InSecondsF();
+base::TimeDelta FloatAnimationCurveAdapter::Duration() const {
+  return duration_;
 }
 
 scoped_ptr<cc::AnimationCurve> FloatAnimationCurveAdapter::Clone() const {
diff --git a/ui/compositor/float_animation_curve_adapter.h b/ui/compositor/float_animation_curve_adapter.h
index 1c7b8b3..88d5870 100644
--- a/ui/compositor/float_animation_curve_adapter.h
+++ b/ui/compositor/float_animation_curve_adapter.h
@@ -21,7 +21,7 @@ class FloatAnimationCurveAdapter : public cc::FloatAnimationCurve {
   ~FloatAnimationCurveAdapter() override {}
 
   // FloatAnimationCurve implementation.
-  double Duration() const override;
+  base::TimeDelta Duration() const override;
   scoped_ptr<cc::AnimationCurve> Clone() const override;
   float GetValue(double t) const override;
 
diff --git a/ui/compositor/transform_animation_curve_adapter.cc b/ui/compositor/transform_animation_curve_adapter.cc
index fa73140..2c11488 100644
--- a/ui/compositor/transform_animation_curve_adapter.cc
+++ b/ui/compositor/transform_animation_curve_adapter.cc
@@ -22,8 +22,8 @@ TransformAnimationCurveAdapter::TransformAnimationCurveAdapter(
 TransformAnimationCurveAdapter::~TransformAnimationCurveAdapter() {
 }
 
-double TransformAnimationCurveAdapter::Duration() const {
-  return duration_.InSecondsF();
+base::TimeDelta TransformAnimationCurveAdapter::Duration() const {
+  return duration_;
 }
 
 scoped_ptr<cc::AnimationCurve> TransformAnimationCurveAdapter::Clone() const {
@@ -86,8 +86,8 @@ InverseTransformCurveAdapter::InverseTransformCurveAdapter(
 InverseTransformCurveAdapter::~InverseTransformCurveAdapter() {
 }
 
-double InverseTransformCurveAdapter::Duration() const {
-  return duration_.InSeconds();
+base::TimeDelta InverseTransformCurveAdapter::Duration() const {
+  return duration_;
 }
 
 scoped_ptr<cc::AnimationCurve> InverseTransformCurveAdapter::Clone() const {
diff --git a/ui/compositor/transform_animation_curve_adapter.h b/ui/compositor/transform_animation_curve_adapter.h
index 7aa318e..c08024d 100644
--- a/ui/compositor/transform_animation_curve_adapter.h
+++ b/ui/compositor/transform_animation_curve_adapter.h
@@ -25,7 +25,7 @@ class COMPOSITOR_EXPORT TransformAnimationCurveAdapter
   ~TransformAnimationCurveAdapter() override;
 
   // TransformAnimationCurve implementation.
-  double Duration() const override;
+  base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
   gfx::Transform GetValue(double t) const override;
   bool AnimatedBoundsForBox(const gfx::BoxF& box,
@@ -55,7 +55,7 @@ class COMPOSITOR_EXPORT InverseTransformCurveAdapter
 
   ~InverseTransformCurveAdapter() override;
 
-  double Duration() const override;
+  base::TimeDelta Duration() const override;
   scoped_ptr<AnimationCurve> Clone() const override;
   gfx::Transform GetValue(double t) const override;
   bool AnimatedBoundsForBox(const gfx::BoxF& box,