compositor-worker: plumb element id and mutable properties

cc/layers/layer_impl.h

 // 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.
 
 #ifndef CC_LAYERS_LAYER_IMPL_H_
 #define CC_LAYERS_LAYER_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 299 matching lines @@
 
   void SetContentsOpaque(bool opaque);
   bool contents_opaque() const { return contents_opaque_; }
 
   void SetOpacity(float opacity);
   float opacity() const { return opacity_; }
   bool OpacityIsAnimating() const;
   bool HasPotentiallyRunningOpacityAnimation() const;
   bool OpacityIsAnimatingOnImplOnly() const;
 
+  void SetElementId(uint64_t element_id);
+  uint64_t element_id() const { return element_id_; }
+
+  void SetMutableProperties(uint32_t properties);
+  uint32_t mutable_properties() const { return mutable_properties_; }
+
   void SetBlendMode(SkXfermode::Mode);
   SkXfermode::Mode blend_mode() const { return blend_mode_; }
   void set_draw_blend_mode(SkXfermode::Mode blend_mode) {
     if (draw_blend_mode_ == blend_mode)
       return;
     draw_blend_mode_ = blend_mode;
     SetNeedsPushProperties();
   }
   SkXfermode::Mode draw_blend_mode() const { return draw_blend_mode_; }
   bool uses_default_blend_mode() const {
@@ skipping 507 matching lines @@
   int num_dependents_need_push_properties_;
 
   // Layers that share a sorting context id will be sorted together in 3d
   // space.  0 is a special value that means this layer will not be sorted and
   // will be drawn in paint order.
   int sorting_context_id_;
 
   DrawMode current_draw_mode_;
 
  private:
+  uint64_t element_id_;
+  uint32_t mutable_properties_;
   // Rect indicating what was repainted/updated during update.
   // Note that plugin layers bypass this and leave it empty.
   // This is in the layer's space.
   gfx::Rect update_rect_;
 
   // Denotes an area that is damaged and needs redraw. This is in the layer's
   // space.
   gfx::Rect damage_rect_;
 
   // Manages animations for this layer.
@@ skipping 16 matching lines @@
   // If true, the layer or one of its descendants has a wheel or touch handler.
   bool layer_or_descendant_has_input_handler_;
   bool sorted_for_recursion_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_IMPL_H_