Convert use of int ms to TimeDelta in files owned by brettw.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index ff139dd5d5104f61dabd98f1f641e1741a56a181..11849cd649d366e6e19865d3265e158145efe565 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -679,13 +679,13 @@ void RenderWidget::AnimateIfNeeded() {
     return;
 
   // Target 60FPS if vsync is on. Go as fast as we can if vsync is off.
-  int animationInterval = IsRenderingVSynced() ? 16 : 0;
+  base::TimeDelta animationInterval = IsRenderingVSynced() ?
+      base::TimeDelta::FromMilliseconds(16) : base::TimeDelta();
 
   base::Time now = base::Time::Now();
   if (now >= animation_floor_time_ || is_accelerated_compositing_active_) {
     TRACE_EVENT0("renderer", "RenderWidget::AnimateIfNeeded")
-    animation_floor_time_ = now +
-        base::TimeDelta::FromMilliseconds(animationInterval);
+    animation_floor_time_ = now + animationInterval;
     // Set a timer to call us back after animationInterval before
     // running animation callbacks so that if a callback requests another
     // we'll be sure to run it at the proper time.
@@ -708,7 +708,7 @@ void RenderWidget::AnimateIfNeeded() {
   // base::Time::Now() has advanced past the animation_floor_time_.  To
   // avoid exposing this delay to javascript, we keep posting delayed
   // tasks until base::Time::Now() has advanced far enough.
-  int64 delay = (animation_floor_time_ - now).InMillisecondsRoundedUp();
+  base::TimeDelta delay = animation_floor_time_ - now;
   animation_task_posted_ = true;
   MessageLoop::current()->PostDelayedTask(
       FROM_HERE, base::Bind(&RenderWidget::AnimationCallback, this), delay);