Revert of Teach HistoryItem about a request's initiator.

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

 /*
  * Copyright (C) 2005, 2006, 2008, 2011 Apple 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 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/loader/HistoryItem.h"
 
 #include "core/dom/Document.h"
 #include "core/html/forms/FormController.h"
 #include "platform/network/ResourceRequest.h"
-#include "platform/weborigin/SecurityOrigin.h"
 #include "platform/weborigin/SecurityPolicy.h"
 #include "wtf/Assertions.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/text/CString.h"
 
 namespace blink {
 
 static long long generateSequenceNumber()
 {
     // Initialize to the current time to reduce the likelihood of generating
@@ skipping 27 matching lines @@
 const Referrer& HistoryItem::referrer() const
 {
     return m_referrer;
 }
 
 const String& HistoryItem::target() const
 {
     return m_target;
 }
 
-PassRefPtr<SecurityOrigin> HistoryItem::requestorOrigin() const
-{
-    return SecurityOrigin::createFromString(m_requestorOrigin);
-}
-
 void HistoryItem::setURLString(const String& urlString)
 {
     if (m_urlString != urlString)
         m_urlString = urlString;
 }
 
 void HistoryItem::setURL(const KURL& url)
 {
     setURLString(url.getString());
 }
 
 void HistoryItem::setReferrer(const Referrer& referrer)
 {
     // This should be a RELEASE_ASSERT.
     m_referrer = SecurityPolicy::generateReferrer(referrer.referrerPolicy, url(), referrer.referrer);
 }
 
-void HistoryItem::setRequestorOrigin(PassRefPtr<SecurityOrigin> origin)
-{
-    m_requestorOrigin = origin->toString();
-}
-
 void HistoryItem::setTarget(const String& target)
 {
     m_target = target;
 }
 
 const FloatPoint& HistoryItem::visualViewportScrollPoint() const
 {
     return m_visualViewportScrollPoint;
 }
 
@@ skipping 94 matching lines @@
     // FIXME: We should find a better way to check if this is the current document.
     return equalIgnoringFragmentIdentifier(url(), doc->url());
 }
 
 DEFINE_TRACE(HistoryItem)
 {
     visitor->trace(m_documentState);
 }
 
 } // namespace blink