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

ui/compositor/transform_animation_curve_adapter.cc

 // Copyright (c) 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.
 
 #include "ui/compositor/transform_animation_curve_adapter.h"
 
+#include "cc/base/time_util.h"
+
 namespace ui {
 
 TransformAnimationCurveAdapter::TransformAnimationCurveAdapter(
     gfx::Tween::Type tween_type,
     gfx::Transform initial_value,
     gfx::Transform target_value,
     base::TimeDelta duration)
     : tween_type_(tween_type),
       initial_value_(initial_value),
       target_value_(target_value),
       duration_(duration) {
   gfx::DecomposeTransform(&decomposed_initial_value_, initial_value_);
   gfx::DecomposeTransform(&decomposed_target_value_, target_value_);
 }
 
 TransformAnimationCurveAdapter::~TransformAnimationCurveAdapter() {
 }
 
 base::TimeDelta TransformAnimationCurveAdapter::Duration() const {
   return duration_;
 }
 
 scoped_ptr<cc::AnimationCurve> TransformAnimationCurveAdapter::Clone() const {
   return make_scoped_ptr(new TransformAnimationCurveAdapter(
       tween_type_, initial_value_, target_value_, duration_));
 }
 
 gfx::Transform TransformAnimationCurveAdapter::GetValue(
-    double t) const {
-  if (t >= duration_.InSecondsF())
+    base::TimeDelta t) const {
+  if (t >= duration_)
     return target_value_;
-  if (t <= 0.0)
+  if (t <= base::TimeDelta())
     return initial_value_;
-  double progress = t / duration_.InSecondsF();
+  double progress = cc::TimeUtil::Divide(t, duration_);
 
   gfx::DecomposedTransform to_return;
   gfx::BlendDecomposedTransforms(&to_return,
                                  decomposed_target_value_,
                                  decomposed_initial_value_,
                                  gfx::Tween::CalculateValue(tween_type_,
                                                             progress));
   return gfx::ComposeTransform(to_return);
 }
 
@@ skipping 22 matching lines @@
   return false;
 }
 
 InverseTransformCurveAdapter::InverseTransformCurveAdapter(
     TransformAnimationCurveAdapter base_curve,
     gfx::Transform initial_value,
     base::TimeDelta duration)
     : base_curve_(base_curve),
       initial_value_(initial_value),
       duration_(duration) {
-  effective_initial_value_ = base_curve_.GetValue(0.0) * initial_value_;
+  effective_initial_value_ =
+      base_curve_.GetValue(base::TimeDelta()) * initial_value_;
 }
 
 InverseTransformCurveAdapter::~InverseTransformCurveAdapter() {
 }
 
 base::TimeDelta InverseTransformCurveAdapter::Duration() const {
   return duration_;
 }
 
 scoped_ptr<cc::AnimationCurve> InverseTransformCurveAdapter::Clone() const {
   return make_scoped_ptr(
       new InverseTransformCurveAdapter(base_curve_, initial_value_, duration_));
 }
 
-gfx::Transform InverseTransformCurveAdapter::GetValue(
-    double t) const {
-  if (t <= 0.0)
+gfx::Transform InverseTransformCurveAdapter::GetValue(base::TimeDelta t) const {
+  if (t <= base::TimeDelta())
     return initial_value_;
 
   gfx::Transform base_transform = base_curve_.GetValue(t);
   // Invert base
   gfx::Transform to_return(gfx::Transform::kSkipInitialization);
   bool is_invertible = base_transform.GetInverse(&to_return);
   DCHECK(is_invertible);
 
   to_return.PreconcatTransform(effective_initial_value_);
   return to_return;
@@ skipping 17 matching lines @@
   return initial_value_.IsIdentityOrTranslation() &&
          base_curve_.IsTranslation();
 }
 
 bool InverseTransformCurveAdapter::MaximumTargetScale(bool forward_direction,
                                                       float* max_scale) const {
   return false;
 }
 
 }  // namespace ui