Plumb debug name via debug info

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 <set>
 #include <string>
 
@@ skipping 254 matching lines @@
   }
   bool use_parent_backface_visibility() const {
     return use_parent_backface_visibility_;
   }
 
   void SetSublayerTransform(const gfx::Transform& sublayer_transform);
   const gfx::Transform& sublayer_transform() const {
     return sublayer_transform_;
   }
 
-  // Debug layer name.
-  void SetDebugName(const std::string& debug_name) { debug_name_ = debug_name; }
-  std::string debug_name() const { return debug_name_; }
-
   bool ShowDebugBorders() const;
 
   // These invalidate the host's render surface layer list.  The caller
   // is responsible for calling set_needs_update_draw_properties on the tree
   // so that its list can be recreated.
   void CreateRenderSurface();
   void ClearRenderSurface();
 
   DrawProperties<LayerImpl>& draw_properties() {
     return draw_properties_;
@@ skipping 325 matching lines @@
 
   gfx::Vector2dF scroll_delta_;
   gfx::Vector2d sent_scroll_delta_;
   gfx::Vector2d max_scroll_offset_;
   gfx::Vector2dF last_scroll_offset_;
 
   // The global depth value of the center of the layer. This value is used
   // to sort layers from back to front.
   float draw_depth_;
 
-  // Debug layer name.
-  std::string debug_name_;
-
   FilterOperations filters_;
   FilterOperations background_filters_;
 
  protected:
   DrawMode current_draw_mode_;
 
  private:
   // Rect indicating what was repainted/updated during update.
   // Note that plugin layers bypass this and leave it empty.
   // Uses layer (not content) space.
@@ skipping 17 matching lines @@
   DrawProperties<LayerImpl> draw_properties_;
 
   scoped_refptr<base::debug::ConvertableToTraceFormat> debug_info_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_IMPL_H_