CC should use TimeTicks and TimeDelta to represent time

webkit/renderer/compositor_bindings/web_animation_impl.cc

Index: webkit/renderer/compositor_bindings/web_animation_impl.cc
diff --git a/webkit/renderer/compositor_bindings/web_animation_impl.cc b/webkit/renderer/compositor_bindings/web_animation_impl.cc
index c401d5c974128060ca7a6f59530fa726ff1dd463..ce9046ba9aeb349ff8e0b84e13ec00f2514ce06a 100644
--- a/webkit/renderer/compositor_bindings/web_animation_impl.cc
+++ b/webkit/renderer/compositor_bindings/web_animation_impl.cc
@@ -84,7 +84,8 @@ void WebAnimationImpl::setIterations(int n) { animation_->set_iterations(n); }
 double WebAnimationImpl::startTime() const { return animation_->start_time(); }
 
 void WebAnimationImpl::setStartTime(double monotonic_time) {
-  animation_->set_start_time(monotonic_time);
+  animation_->set_start_time(base::TimeTicks::FromInternalValue(
+      monotonic_time * base::Time::kMicrosecondsPerSecond));
 }
 
 double WebAnimationImpl::timeOffset() const {
@@ -92,7 +93,8 @@ double WebAnimationImpl::timeOffset() const {
 }
 
 void WebAnimationImpl::setTimeOffset(double monotonic_time) {
-  animation_->set_time_offset(monotonic_time);
+  animation_->set_time_offset(base::TimeTicks::FromInternalValue(
+      monotonic_time * base::Time::kMicrosecondsPerSecond));
 }
 
 bool WebAnimationImpl::alternatesDirection() const {