Plumb initiator out of Blink.

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

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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.
@@ skipping 85 matching lines @@
   // browsing context was created.
   //
   // Note: We generalize this to all "blank" URLs and invalid URLs because we
   // treat all of these URLs as about:blank.
   return url.isEmpty() || url.protocolIsAbout();
 }
 
 DocumentLoader::DocumentLoader(LocalFrame* frame,
                                const ResourceRequest& req,
                                const SubstituteData& substituteData,
-                               ClientRedirectPolicy clientRedirectPolicy)
+                               ClientRedirectPolicy clientRedirectPolicy,
+                               Document* originDocument)
     : m_frame(frame),
       m_fetcher(FrameFetchContext::createFetcherFromDocumentLoader(this)),
+      m_originDocument(originDocument),
       m_originalRequest(req),
       m_substituteData(substituteData),
       m_request(req),
       m_loadType(FrameLoadTypeStandard),
       m_isClientRedirect(clientRedirectPolicy ==
                          ClientRedirectPolicy::ClientRedirect),
       m_replacesCurrentHistoryItem(false),
       m_dataReceived(false),
       m_navigationType(NavigationTypeOther),
       m_documentLoadTiming(*this),
@@ skipping 32 matching lines @@
   DCHECK(!m_mainResource);
   DCHECK(!m_applicationCacheHost);
   DCHECK_EQ(m_state, SentDidFinishLoad);
 }
 
 DEFINE_TRACE(DocumentLoader) {
   visitor->trace(m_frame);
   visitor->trace(m_fetcher);
   visitor->trace(m_mainResource);
   visitor->trace(m_writer);
+  visitor->trace(m_originDocument);
   visitor->trace(m_subresourceFilter);
   visitor->trace(m_documentLoadTiming);
   visitor->trace(m_applicationCacheHost);
   visitor->trace(m_contentSecurityPolicy);
   RawResourceClient::trace(visitor);
 }
 
 unsigned long DocumentLoader::mainResourceIdentifier() const {
   return m_mainResource ? m_mainResource->identifier() : 0;
 }
@@ skipping 208 matching lines @@
   // origin, then block the redirect.
   const KURL& requestURL = m_request.url();
   RefPtr<SecurityOrigin> redirectingOrigin =
       SecurityOrigin::create(redirectResponse.url());
   if (!redirectingOrigin->canDisplay(requestURL)) {
     FrameLoader::reportLocalLoadFailed(m_frame, requestURL.getString());
     m_fetcher->stopFetching();
     return false;
   }
   if (frameLoader().shouldContinueForNavigationPolicy(
-          m_request, SubstituteData(), this, CheckContentSecurityPolicy,
-          m_navigationType, NavigationPolicyCurrentTab, m_loadType,
-          isClientRedirect(), nullptr) != NavigationPolicyCurrentTab) {
+          m_originDocument.get(), m_request, SubstituteData(), this,
+          CheckContentSecurityPolicy, m_navigationType,
+          NavigationPolicyCurrentTab, m_loadType, isClientRedirect(),
+          nullptr) != NavigationPolicyCurrentTab) {
     m_fetcher->stopFetching();
     return false;
   }
 
   DCHECK(timing().fetchStart());
   appendRedirect(requestURL);
   timing().addRedirect(redirectResponse.url(), requestURL);
 
   // If a redirection happens during a back/forward navigation, don't restore
   // any state from the old HistoryItem. There is a provisional history item for
@@ skipping 542 matching lines @@
                      InstallNewDocumentReason::kJavascriptURL,
                      ForceSynchronousParsing, KURL());
   if (!source.isNull())
     m_writer->appendReplacingData(source);
   endWriting();
 }
 
 DEFINE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 }  // namespace blink