DOM-based SVG resource tracking

third_party/WebKit/Source/core/dom/IdTargetObserver.h

 /*
  * Copyright (C) 2012 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 25 matching lines @@
 class IdTargetObserver : public GarbageCollectedFinalized<IdTargetObserver> {
  public:
   virtual ~IdTargetObserver();
   DECLARE_VIRTUAL_TRACE();
   virtual void IdTargetChanged() = 0;
   virtual void Unregister();
 
  protected:
   IdTargetObserver(IdTargetObserverRegistry&, const AtomicString& id);
 
+  const AtomicString& Id() const { return id_; }
+
  private:
   IdTargetObserverRegistry& Registry() { return *registry_; }
 
   Member<IdTargetObserverRegistry> registry_;
   AtomicString id_;
 };
 
 }  // namespace blink
 
 #endif  // IdTargetObserver_h