Replicate feature policy container policies.

third_party/WebKit/Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 610 matching lines @@
   // Depending on baseURLOverride value it is possible that parent document
   // base URL will be used instead of it. See baseURLForOverride function
   // for details.
   KURL CompleteURLWithOverride(const String&,
                                const KURL& base_url_override) const;
   // Determines which base URL should be used given specified override.
   // If override is empty or is about:blank url and parent document exists
   // base URL of parent will be returned, passed base URL override otherwise.
   const KURL& BaseURLForOverride(const KURL& base_url_override) const;
 
+  // Determines whether a new document should take on the same origin as that of
+  // the document which created it.
+  static bool ShouldInheritSecurityOriginFromOwner(const KURL&);
+
   String UserAgent() const final;
   void DisableEval(const String& error_message) final;
 
   CSSStyleSheet& ElementSheet();
 
   virtual DocumentParser* CreateParser();
   DocumentParser* Parser() const { return parser_.Get(); }
   ScriptableDocumentParser* GetScriptableDocumentParser() const;
 
   // FinishingPrinting denotes that the non-printing layout state is being
@@ skipping 1084 matching lines @@
 DEFINE_TYPE_CASTS(TreeScope, Document, document, true, true);
 
 }  // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 CORE_EXPORT void showLiveDocumentInstances();
 #endif
 
 #endif  // Document_h