cc: Move tracking of layer_property_changed to main thread (3)

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 632 matching lines @@
 
   // This flag is set when the layer needs to push properties to the impl
   // side.
   bool needs_push_properties_;
 
   // The number of direct children or dependent layers that need to be recursed
   // to in order for them or a descendent of them to push properties to the impl
   // side.
   int num_dependents_need_push_properties_;
 
-  // Tracks whether this layer may have changed stacking order with its
-  // siblings.
-  bool stacking_order_changed_;
-
   // The update rect is the region of the compositor resource that was
   // actually updated by the compositor. For layers that may do updating
   // outside the compositor's control (i.e. plugin layers), this information
   // is not available and the update rect will remain empty.
   // Note this rect is in layer space (not content space).
   gfx::Rect update_rect_;
 
   scoped_refptr<Layer> mask_layer_;
 
   int layer_id_;
@@ skipping 125 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_