Make content::FeaturePolicy implement WebFeaturePolicy, and use it in blink code

third_party/WebKit/Source/core/dom/Document.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, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 5616 matching lines @@
 }
 
 void Document::updateSecurityOrigin(PassRefPtr<SecurityOrigin> origin) {
   setSecurityOrigin(std::move(origin));
   didUpdateSecurityOrigin();
 }
 
 void Document::didUpdateSecurityOrigin() {
   if (!m_frame)
     return;
+  updateFeaturePolicyOrigin();
   m_frame->script().updateSecurityOrigin(getSecurityOrigin());
 }
 
 bool Document::isContextThread() const {
   return isMainThread();
 }
 
 void Document::updateFocusAppearanceLater() {
   if (!m_updateFocusAppearanceTimer.isActive())
     m_updateFocusAppearanceTimer.startOneShot(0, BLINK_FROM_HERE);
@@ skipping 933 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (blink::Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif