Plumb initiator out of Blink.

third_party/WebKit/Source/core/frame/LocalFrameClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  * 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
@@ skipping 99 matching lines @@
   virtual void dispatchDidChangeIcons(IconType) = 0;
   virtual void dispatchDidCommitLoad(HistoryItem*, HistoryCommitType) = 0;
   virtual void dispatchDidFailProvisionalLoad(const ResourceError&,
                                               HistoryCommitType) = 0;
   virtual void dispatchDidFailLoad(const ResourceError&, HistoryCommitType) = 0;
   virtual void dispatchDidFinishDocumentLoad() = 0;
   virtual void dispatchDidFinishLoad() = 0;
   virtual void dispatchDidChangeThemeColor() = 0;
 
   virtual NavigationPolicy decidePolicyForNavigation(
+      Document* originDocument,
       const ResourceRequest&,
       DocumentLoader*,
       NavigationType,
       NavigationPolicy,
       bool shouldReplaceCurrentEntry,
       bool isClientRedirect,
       HTMLFormElement*,
       ContentSecurityPolicyDisposition
           shouldCheckMainWorldContentSecurityPolicy) = 0;
 
@@ skipping 44 matching lines @@
   virtual void didObserveLoadingBehavior(WebLoadingBehaviorFlag) {}
 
   // Transmits the change in the set of watched CSS selectors property that
   // match any element on the frame.
   virtual void selectorMatchChanged(const Vector<String>& addedSelectors,
                                     const Vector<String>& removedSelectors) = 0;
 
   virtual DocumentLoader* createDocumentLoader(LocalFrame*,
                                                const ResourceRequest&,
                                                const SubstituteData&,
-                                               ClientRedirectPolicy) = 0;
+                                               ClientRedirectPolicy,
+                                               Document* originDocument) = 0;
 
   virtual String userAgent() = 0;
 
   virtual String doNotTrackValue() = 0;
 
   virtual void transitionToCommittedForNewPage() = 0;
 
   virtual LocalFrame* createFrame(const FrameLoadRequest&,
                                   const AtomicString& name,
                                   HTMLFrameOwnerElement*) = 0;
@@ skipping 148 matching lines @@
   virtual BlameContext* frameBlameContext() { return nullptr; }
 
   virtual void setHasReceivedUserGesture() {}
 
   virtual void abortClientNavigation() {}
 };
 
 }  // namespace blink
 
 #endif  // LocalFrameClient_h