CC Animation: Erase cc::LayerSettings everywhere.

cc/layers/painted_scrollbar_layer.cc

Index: cc/layers/painted_scrollbar_layer.cc
diff --git a/cc/layers/painted_scrollbar_layer.cc b/cc/layers/painted_scrollbar_layer.cc
index 8815abb999556aa7136ae2d725435716fe2d7286..6fcffb551c99f9e6c6e430e30b429c45af380e55 100644
--- a/cc/layers/painted_scrollbar_layer.cc
+++ b/cc/layers/painted_scrollbar_layer.cc
@@ -31,17 +31,15 @@ scoped_ptr<LayerImpl> PaintedScrollbarLayer::CreateLayerImpl(
 }
 
 scoped_refptr<PaintedScrollbarLayer> PaintedScrollbarLayer::Create(
-    const LayerSettings& settings,
     scoped_ptr<Scrollbar> scrollbar,
     int scroll_layer_id) {
-  return make_scoped_refptr(new PaintedScrollbarLayer(
-      settings, std::move(scrollbar), scroll_layer_id));
+  return make_scoped_refptr(
+      new PaintedScrollbarLayer(std::move(scrollbar), scroll_layer_id));
 }
 
-PaintedScrollbarLayer::PaintedScrollbarLayer(const LayerSettings& settings,
-                                             scoped_ptr<Scrollbar> scrollbar,
+PaintedScrollbarLayer::PaintedScrollbarLayer(scoped_ptr<Scrollbar> scrollbar,
                                              int scroll_layer_id)
-    : Layer(settings),
+    : Layer(),
       scrollbar_(std::move(scrollbar)),
       scroll_layer_id_(scroll_layer_id),
       internal_contents_scale_(1.f),