cc: Remove fixed raster scale, stop rasterizing with will-change.

cc/trees/layer_tree_impl.h

Index: cc/trees/layer_tree_impl.h
diff --git a/cc/trees/layer_tree_impl.h b/cc/trees/layer_tree_impl.h
index 686bb4b012bbf9a2835c1689ebb43aa9a20da141..fb52f614dd6764d873052908e76c2d910998b13a 100644
--- a/cc/trees/layer_tree_impl.h
+++ b/cc/trees/layer_tree_impl.h
@@ -118,8 +118,6 @@ class CC_EXPORT LayerTreeImpl {
   AnimationHost* animation_host() const {
     return layer_tree_host_impl_->animation_host();
   }
-  void SetFixedRasterScaleHasBlurryContent();
-  void SetFixedRasterScaleAttemptedToChangeScale();
 
   // Tree specific methods exposed to layer-impl tree.
   // ---------------------------------------------------------------------------