Make scroll offset type of float in cc

cc/animation/layer_animation_controller.cc

Index: cc/animation/layer_animation_controller.cc
diff --git a/cc/animation/layer_animation_controller.cc b/cc/animation/layer_animation_controller.cc
index 08a0ee91f1854cf4fc5020b50d8996803a9f1c01..93f2c5967155e954cae414736fc73e3017a39b13 100644
--- a/cc/animation/layer_animation_controller.cc
+++ b/cc/animation/layer_animation_controller.cc
@@ -534,7 +534,7 @@ void LayerAnimationController::PushNewAnimationsToImplThread(
 
     // Scroll animations always start at the current scroll offset.
     if (animations_[i]->target_property() == Animation::ScrollOffset) {
-      gfx::Vector2dF current_scroll_offset;
+      gfx::ScrollOffset current_scroll_offset;
       if (controller_impl->value_provider_) {
         current_scroll_offset =
             controller_impl->value_provider_->ScrollOffsetForAnimation();
@@ -544,7 +544,7 @@ void LayerAnimationController::PushNewAnimationsToImplThread(
         current_scroll_offset = value_provider_->ScrollOffsetForAnimation();
       }
       animations_[i]->curve()->ToScrollOffsetAnimationCurve()->SetInitialValue(
-          current_scroll_offset);
+          current_scroll_offset.ToVector2dF());

[danakj, 2014/09/25 22:01:26]

ScrollOffsetAnimationCurve should be ScrollOffsets?
https://code.google.com/p/chromium/codesearch#chromium/src/cc/animation/scrol...

[Yufeng Shen (Slow to review), 2014/09/26 20:19:07]

Done.

     }
 
     // The new animation should be set to run as soon as possible.