Creating utility for converting TimeTicks to WebKit double and use it in the Chrome compositor.

webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc

Index: webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc
diff --git a/webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc b/webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc
index a1de2a26869f9fa71e85bf7a84e890552fd3d2f8..2c4b4e461128a17266ca30d371612457b3eefe40 100644
--- a/webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc
+++ b/webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc
@@ -5,6 +5,7 @@
 #include "webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.h"
 
 #include "third_party/WebKit/public/platform/WebAnimationDelegate.h"
+#include "webkit/renderer/compositor_bindings/webkit_time.h"
 
 namespace webkit {
 
@@ -16,7 +17,7 @@ void WebToCCAnimationDelegateAdapter::NotifyAnimationStarted(
     base::TimeTicks monotonic_time,
     cc::Animation::TargetProperty target_property) {
   delegate_->notifyAnimationStarted(
-      (monotonic_time - base::TimeTicks()).InSecondsF(),
+      ToWebKitMonotonicTime(monotonic_time),
       static_cast<blink::WebAnimation::TargetProperty>(target_property));
 }
 
@@ -24,7 +25,7 @@ void WebToCCAnimationDelegateAdapter::NotifyAnimationFinished(
     base::TimeTicks monotonic_time,
     cc::Animation::TargetProperty target_property) {
   delegate_->notifyAnimationFinished(
-      (monotonic_time - base::TimeTicks()).InSecondsF(),
+      ToWebKitMonotonicTime(monotonic_time),
       static_cast<blink::WebAnimation::TargetProperty>(target_property));
 }