cc : Delete LayerImpl::OnOpacityAnimated

cc/input/scrollbar_animation_controller_thinning.cc

Index: cc/input/scrollbar_animation_controller_thinning.cc
diff --git a/cc/input/scrollbar_animation_controller_thinning.cc b/cc/input/scrollbar_animation_controller_thinning.cc
index 1a124ddf05093f27f89e5506272a5f7449fed89d..291479b5ae566f612937b9a8c67bd432a4a035c0 100644
--- a/cc/input/scrollbar_animation_controller_thinning.cc
+++ b/cc/input/scrollbar_animation_controller_thinning.cc
@@ -143,7 +143,15 @@ void ScrollbarAnimationControllerThinning::ApplyOpacityAndThumbThicknessScale(
             ? AdjustScale(opacity, scrollbar->Opacity(), opacity_change_)
             : 0;
 
-    scrollbar->OnOpacityAnimated(effective_opacity);
+    PropertyTrees* property_trees =
+        scrollbar->layer_tree_impl()->property_trees();
+    if (property_trees->IsInIdToIndexMap(PropertyTrees::TreeType::EFFECT,

[ajuma, 2016/08/23 23:48:16]

Here too, please add a comment.

[jaydasika, 2016/08/24 00:37:46]

Done.

+                                         scrollbar->id())) {
+      property_trees->effect_tree.OnOpacityAnimated(
+          effective_opacity,
+          property_trees->effect_id_to_index_map[scrollbar->id()],
+          scrollbar->layer_tree_impl());
+    }
     scrollbar->SetThumbThicknessScaleFactor(AdjustScale(
         thumb_thickness_scale, scrollbar->thumb_thickness_scale_factor(),
         thickness_change_));