cc : Remove parent for mask and replica layers in LayerImpl

cc/layers/layer.h

 // Copyright 2010 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.
 
 #ifndef CC_LAYERS_LAYER_H_
 #define CC_LAYERS_LAYER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 532 matching lines @@
   void SetNextCommitWaitsForActivation();
 
   // Will recalculate whether the layer draws content and set draws_content_
   // appropriately.
   void UpdateDrawsContent(bool has_drawable_content);
   virtual bool HasDrawableContent() const;
 
   // Called when the layer's number of drawable descendants changes.
   void AddDrawableDescendants(int num);
 
-  void AddDependentNeedsPushProperties();
-  void RemoveDependentNeedsPushProperties();
-
   bool IsPropertyChangeAllowed() const;
 
   // Serialize all the necessary properties to be able to reconstruct this Layer
   // into proto::LayerProperties. This method is not marked as const
   // as some implementations need reset member fields, similarly to
   // PushPropertiesTo().
   virtual void LayerSpecificPropertiesToProto(proto::LayerProperties* proto);
 
   // Deserialize all the necessary properties from proto::LayerProperties into
   // this Layer.
@@ skipping 127 matching lines @@
 
   std::vector<FrameTimingRequest> frame_timing_requests_;
   bool frame_timing_requests_dirty_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_H_