Revert of Teach HistoryItem about a request's initiator.

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 25 matching lines @@
 #include "platform/weborigin/Referrer.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Document;
 class DocumentState;
 class EncodedFormData;
 class KURL;
 class ResourceRequest;
-class SecurityOrigin;
 
 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;
-    PassRefPtr<SecurityOrigin> requestorOrigin() const;
     const String& target() const;
 
     EncodedFormData* formData();
     const AtomicString& formContentType() const;
 
     const FloatPoint& visualViewportScrollPoint() const;
     void setVisualViewportScrollPoint(const FloatPoint&);
     const IntPoint& scrollPoint() const;
     void setScrollPoint(const IntPoint&);
 
     float pageScaleFactor() const;
     void setPageScaleFactor(float);
 
     Vector<String> getReferencedFilePaths();
     const Vector<String>& documentState();
     void setDocumentState(const Vector<String>&);
     void setDocumentState(DocumentState*);
     void clearDocumentState();
 
     void setURL(const KURL&);
     void setURLString(const String&);
     void setReferrer(const Referrer&);
-    void setRequestorOrigin(PassRefPtr<SecurityOrigin>);
     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) { m_documentSequenceNumber = number; }
     long long documentSequenceNumber() const { return m_documentSequenceNumber; }
 
     void setScrollRestorationType(HistoryScrollRestorationType  type) { m_scrollRestorationType = type; }
     HistoryScrollRestorationType scrollRestorationType() { return m_scrollRestorationType; }
 
     void setFormInfoFromRequest(const ResourceRequest&);
     void setFormData(PassRefPtr<EncodedFormData>);
     void setFormContentType(const AtomicString&);
 
     bool isCurrentDocument(Document*) const;
 
     DECLARE_TRACE();
 
 private:
     HistoryItem();
 
     String m_urlString;
     Referrer m_referrer;
-    String m_requestorOrigin;
     String m_target;
 
     FloatPoint m_visualViewportScrollPoint;
     IntPoint m_scrollPoint;
     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 15 matching lines @@
 
     // info used to repost form data
     RefPtr<EncodedFormData> m_formData;
     AtomicString m_formContentType;
 
 }; // class HistoryItem
 
 } // namespace blink
 
 #endif // HISTORYITEM_H