Move unique name generation and tracking into //content.

third_party/WebKit/Source/core/loader/HistoryItem.h

 /*
  * Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Research In Motion Limited. 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
@@ skipping 37 matching lines @@
 class CORE_EXPORT HistoryItem final
     : public GarbageCollectedFinalized<HistoryItem> {
  public:
   static HistoryItem* create() { return new HistoryItem; }
   ~HistoryItem();
 
   const String& urlString() const;
   KURL url() const;
 
   const Referrer& referrer() const;
-  const String& target() const;
 
   EncodedFormData* formData();
   const AtomicString& formContentType() const;
 
   void setDidSaveScrollOrScaleState(bool didSaveScrollOrScaleState) {
     m_didSaveScrollOrScaleState = didSaveScrollOrScaleState;
   }
 
   bool didSaveScrollOrScaleState() const { return m_didSaveScrollOrScaleState; }
 
   const ScrollOffset& visualViewportScrollOffset() const;
   void setVisualViewportScrollOffset(const ScrollOffset&);
   const ScrollOffset& getScrollOffset() const;
   void setScrollOffset(const ScrollOffset&);
 
   float pageScaleFactor() const;
   void setPageScaleFactor(float);
 
   Vector<String> getReferencedFilePaths();
   const Vector<String>& getDocumentState();
   void setDocumentState(const Vector<String>&);
   void setDocumentState(DocumentState*);
   void clearDocumentState();
 
   void setURL(const KURL&);
   void setURLString(const String&);
   void setReferrer(const Referrer&);
-  void setTarget(const String&);
 
   void setStateObject(PassRefPtr<SerializedScriptValue>);
   SerializedScriptValue* stateObject() const { return m_stateObject.get(); }
 
   void setItemSequenceNumber(long long number) {
     m_itemSequenceNumber = number;
   }
   long long itemSequenceNumber() const { return m_itemSequenceNumber; }
 
   void setDocumentSequenceNumber(long long number) {
@@ skipping 14 matching lines @@
 
   bool isCurrentDocument(Document*) const;
 
   DECLARE_TRACE();
 
  private:
   HistoryItem();
 
   String m_urlString;
   Referrer m_referrer;
-  String m_target;
 
   bool m_didSaveScrollOrScaleState;
   ScrollOffset m_visualViewportScrollOffset;
   ScrollOffset m_scrollOffset;
   float m_pageScaleFactor;
   Vector<String> m_documentStateVector;
   Member<DocumentState> m_documentState;
 
   // If two HistoryItems have the same item sequence number, then they are
   // clones of one another. Traversing history from one such HistoryItem to
@@ skipping 14 matching lines @@
   RefPtr<SerializedScriptValue> m_stateObject;
 
   // info used to repost form data
   RefPtr<EncodedFormData> m_formData;
   AtomicString m_formContentType;
 };  // class HistoryItem
 
 }  // namespace blink
 
 #endif  // HISTORYITEM_H