Plumb debug name via debug info

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index d124457c14a59ea576a9d5088c1f733809893270..a91812a00ccc551d49ed81a90fbdae695de3a1f5 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -272,10 +272,6 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
     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
@@ -621,9 +617,6 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
   // to sort layers from back to front.
   float draw_depth_;
 
-  // Debug layer name.
-  std::string debug_name_;
-
   FilterOperations filters_;
   FilterOperations background_filters_;