Remove Layer{Impl}::FilterIsAnimating.

cc/layers/layer_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 593 matching lines @@
 
 SkColor LayerImpl::SafeOpaqueBackgroundColor() const {
   if (contents_opaque())
     return safe_opaque_background_color_;
   SkColor color = background_color();
   if (SkColorGetA(color) == 255)
     color = SK_ColorTRANSPARENT;
   return color;
 }
 
-bool LayerImpl::FilterIsAnimating() const {
-  return GetMutatorHost()->IsAnimatingFilterProperty(
-      element_id(), GetElementTypeForAnimation());
-}
-
 bool LayerImpl::HasPotentiallyRunningFilterAnimation() const {
   return GetMutatorHost()->HasPotentiallyRunningFilterAnimation(
       element_id(), GetElementTypeForAnimation());
 }
 
 void LayerImpl::SetMasksToBounds(bool masks_to_bounds) {
   masks_to_bounds_ = masks_to_bounds;
 }
 
 void LayerImpl::SetContentsOpaque(bool opaque) {
@@ skipping 354 matching lines @@
 
 ScrollTree& LayerImpl::GetScrollTree() const {
   return GetPropertyTrees()->scroll_tree;
 }
 
 TransformTree& LayerImpl::GetTransformTree() const {
   return GetPropertyTrees()->transform_tree;
 }
 
 }  // namespace cc