CSP: Adding the 'upgrade-insecure-requests' directive.

Source/core/dom/DocumentInit.cpp

 /*
  * 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)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 107 matching lines @@
     ASSERT(frameForSecurityContext());
     return frameForSecurityContext()->loader().effectiveSandboxFlags();
 }
 
 bool DocumentInit::shouldEnforceStrictMixedContentChecking() const
 {
     ASSERT(frameForSecurityContext());
     return frameForSecurityContext()->loader().shouldEnforceStrictMixedContentChecking();
 }
 
+SecurityContext::InsecureContentPolicy DocumentInit::insecureContentPolicy() const
+{
+    ASSERT(frameForSecurityContext());
+    return frameForSecurityContext()->loader().insecureContentPolicy();
+}
+
 bool DocumentInit::isHostedInReservedIPRange() const
 {
     if (LocalFrame* frame = frameForSecurityContext()) {
         if (DocumentLoader* loader = frame->loader().provisionalDocumentLoader() ? frame->loader().provisionalDocumentLoader() : frame->loader().documentLoader()) {
             if (!loader->response().remoteIPAddress().isEmpty())
                 return Platform::current()->isReservedIPAddress(loader->response().remoteIPAddress());
         }
     }
     return false;
 }
@@ skipping 39 matching lines @@
     return m_contextDocument;
 }
 
 DocumentInit DocumentInit::fromContext(WeakPtrWillBeRawPtr<Document> contextDocument, const KURL& url)
 {
     return DocumentInit(url, 0, contextDocument, 0);
 }
 
 } // namespace blink