Stop supporting legacy keywords in Referrer-Policy header

third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Torch Mobile, Inc. http://www.torchmobile.com/
  * Copyright (C) 2010 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 280 matching lines @@
             setUrlToLoad(bestFitSourceForImageAttributes(m_mediaValues->devicePixelRatio(), m_sourceSize, m_imgSrcUrl, m_srcsetImageCandidate), AllowURLReplacement);
         } else if (match(attributeName, sizesAttr) && !m_sourceSizeSet) {
             m_sourceSize = SizesAttributeParser(m_mediaValues, attributeValue).length();
             m_sourceSizeSet = true;
             if (!m_srcsetImageCandidate.isEmpty()) {
                 m_srcsetImageCandidate = bestFitSourceForSrcsetAttribute(m_mediaValues->devicePixelRatio(), m_sourceSize, m_srcsetAttributeValue);
                 setUrlToLoad(bestFitSourceForImageAttributes(m_mediaValues->devicePixelRatio(), m_sourceSize, m_imgSrcUrl, m_srcsetImageCandidate), AllowURLReplacement);
             }
         } else if (!m_referrerPolicySet && match(attributeName, referrerpolicyAttr) && !attributeValue.isNull()) {
             m_referrerPolicySet = true;
-            SecurityPolicy::referrerPolicyFromString(attributeValue, &m_referrerPolicy);
+            SecurityPolicy::referrerPolicyFromStringWithLegacyKeywords(attributeValue, &m_referrerPolicy);
         }
     }
 
     template<typename NameType>
     void processLinkAttribute(const NameType& attributeName, const String& attributeValue)
     {
         // FIXME - Don't set rel/media/crossorigin multiple times.
         if (match(attributeName, hrefAttr)) {
             setUrlToLoad(attributeValue, DisallowURLReplacement);
         } else if (match(attributeName, relAttr)) {
@@ skipping 242 matching lines @@
         viewport->set = true;
     }
     FloatSize initialViewport(mediaValues->deviceWidth(), mediaValues->deviceHeight());
     PageScaleConstraints constraints = description.resolve(initialViewport, documentParameters->defaultViewportMinWidth);
     mediaValues->overrideViewportDimensions(constraints.layoutSize.width(), constraints.layoutSize.height());
 }
 
 static void handleMetaReferrer(const String& attributeValue, CachedDocumentParameters* documentParameters, CSSPreloadScanner* cssScanner)
 {
     ReferrerPolicy metaReferrerPolicy = ReferrerPolicyDefault;
-    if (!attributeValue.isEmpty() && !attributeValue.isNull() && SecurityPolicy::referrerPolicyFromString(attributeValue, &metaReferrerPolicy)) {
+    if (!attributeValue.isEmpty() && !attributeValue.isNull() && SecurityPolicy::referrerPolicyFromStringWithLegacyKeywords(attributeValue, &metaReferrerPolicy)) {
         documentParameters->referrerPolicy = metaReferrerPolicy;
     }
     cssScanner->setReferrerPolicy(documentParameters->referrerPolicy);
 }
 
 template <typename Token>
 static void handleMetaNameAttribute(const Token& token, CachedDocumentParameters* documentParameters, MediaValuesCached* mediaValues, CSSPreloadScanner* cssScanner, ViewportDescriptionWrapper* viewport)
 {
     const typename Token::Attribute* nameAttribute = token.getAttributeItem(nameAttr);
     if (!nameAttribute)
@@ skipping 235 matching lines @@
     ASSERT(document);
     doHtmlPreloadScanning = !document->settings() || document->settings()->doHtmlPreloadScanning();
     doDocumentWritePreloadScanning = doHtmlPreloadScanning && document->frame() && document->frame()->isMainFrame();
     defaultViewportMinWidth = document->viewportDefaultMinWidth();
     viewportMetaZeroValuesQuirk = document->settings() && document->settings()->viewportMetaZeroValuesQuirk();
     viewportMetaEnabled = document->settings() && document->settings()->viewportMetaEnabled();
     referrerPolicy = document->getReferrerPolicy();
 }
 
 } // namespace blink