Ship `referrerpolicy` attribute

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 85 matching lines @@
     if (name == nameAttr) {
         if (inDocument() && document().isHTMLDocument() && !isInShadowTree()) {
             HTMLDocument& document = toHTMLDocument(this->document());
             document.removeExtraNamedItem(m_name);
             document.addExtraNamedItem(value);
         }
         m_name = value;
     } else if (name == sandboxAttr) {
         m_sandbox->setValue(value);
         UseCounter::count(document(), UseCounter::SandboxViaIFrame);
-    } else if (RuntimeEnabledFeatures::referrerPolicyAttributeEnabled() && name == referrerpolicyAttr) {
+    } else if (name == referrerpolicyAttr) {
         m_referrerPolicy = ReferrerPolicyDefault;
         if (!value.isNull())
             SecurityPolicy::referrerPolicyFromString(value, &m_referrerPolicy);
     } else {
         if (name == srcAttr)
             logUpdateAttributeIfIsolatedWorldAndInDocument("iframe", srcAttr, oldValue, value);
         HTMLFrameElementBase::parseAttribute(name, oldValue, value);
     }
 }
 
@@ skipping 35 matching lines @@
     if (!invalidTokens.isNull())
         document().addConsoleMessage(ConsoleMessage::create(OtherMessageSource, ErrorMessageLevel, "Error while parsing the 'sandbox' attribute: " + invalidTokens));
     setSynchronizedLazyAttribute(sandboxAttr, m_sandbox->value());
 }
 
 ReferrerPolicy HTMLIFrameElement::referrerPolicyAttribute()
 {
     return m_referrerPolicy;
 }
 } // namespace blink