Added allowvr attribute to iframes and vrEnabled to Document

third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann (hausmann@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Ericsson AB. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 98 matching lines @@
         UseCounter::count(document(), UseCounter::SandboxViaIFrame);
     } else if (name == referrerpolicyAttr) {
         m_referrerPolicy = ReferrerPolicyDefault;
         if (!value.isNull())
             SecurityPolicy::referrerPolicyFromStringWithLegacyKeywords(value, &m_referrerPolicy);
     } else if (name == allowfullscreenAttr) {
         bool oldAllowFullscreen = m_allowFullscreen;
         m_allowFullscreen = !value.isNull();
         if (m_allowFullscreen != oldAllowFullscreen)
             frameOwnerPropertiesChanged();
+    } else if (name == allowvrAttr) {
+        bool oldAllowVR = m_allowVR;
+        m_allowVR = !value.isNull();
+        if (m_allowVR != oldAllowVR)
+            frameOwnerPropertiesChanged();
     } else if (name == permissionsAttr) {
         if (initializePermissionsAttribute())
             m_permissions->setValue(value);
     } else {
         if (name == srcAttr)
             logUpdateAttributeIfIsolatedWorldAndInDocument("iframe", srcAttr, oldValue, value);
         HTMLFrameElementBase::parseAttribute(name, oldValue, value);
     }
 }
 
@@ skipping 59 matching lines @@
 {
     if (!RuntimeEnabledFeatures::permissionDelegationEnabled())
         return false;
 
     if (!m_permissions)
         m_permissions = HTMLIFrameElementPermissions::create(this);
     return true;
 }
 
 } // namespace blink