CC Animations: Fix AnimationHost mode integration with Property Trees.

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <set>
@@ skipping 3451 matching lines @@
       return true;
 
     return false;
   }
 }
 
 void LayerTreeHostImpl::SetMutatorsNeedCommit() {
   SetNeedsCommit();
 }
 
+void LayerTreeHostImpl::SetMutatorsNeedRebuildPropertyTrees() {}
+
 void LayerTreeHostImpl::SetTreeLayerFilterMutated(
     int layer_id,
     LayerTreeImpl* tree,
     const FilterOperations& filters) {
   if (!tree)
     return;
 
   LayerAnimationValueObserver* layer = tree->LayerById(layer_id);
   if (layer)
     layer->OnFilterAnimated(filters);
@@ skipping 114 matching lines @@
   if (active_tree()) {
     LayerAnimationValueProvider* layer = active_tree()->LayerById(layer_id);
     if (layer)
       return layer->ScrollOffsetForAnimation();
   }
 
   return gfx::ScrollOffset();
 }
 
 }  // namespace cc