Add ReferrerPolicy support to preload

third_party/WebKit/Source/platform/network/LinkHeader.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/network/LinkHeader.h"
 
 #include "base/strings/string_util.h"
 #include "components/link_header_util/link_header_util.h"
 #include "wtf/text/ParsingUtilities.h"
 
@@ skipping 18 matching lines @@
   if (base::EqualsCaseInsensitiveASCII(name, "media"))
     return LinkHeader::LinkParameterMedia;
   if (base::EqualsCaseInsensitiveASCII(name, "type"))
     return LinkHeader::LinkParameterType;
   if (base::EqualsCaseInsensitiveASCII(name, "rev"))
     return LinkHeader::LinkParameterRev;
   if (base::EqualsCaseInsensitiveASCII(name, "hreflang"))
     return LinkHeader::LinkParameterHreflang;
   if (base::EqualsCaseInsensitiveASCII(name, "as"))
     return LinkHeader::LinkParameterAs;
+  if (base::EqualsCaseInsensitiveASCII(name, "referrerpolicy"))
+    return LinkHeader::LinkParameterReferrerPolicy;
   return LinkHeader::LinkParameterUnknown;
 }
 
 void LinkHeader::setValue(LinkParameterName name, const String& value) {
   if (name == LinkParameterRel && !m_rel)
     m_rel = value.lower();
   else if (name == LinkParameterAnchor)
     m_isValid = false;
   else if (name == LinkParameterCrossOrigin)
     m_crossOrigin = value;
   else if (name == LinkParameterAs)
     m_as = value.lower();
+  else if (name == LinkParameterReferrerPolicy)
+    m_referrerPolicy = value.lower();
   else if (name == LinkParameterType)
     m_mimeType = value.lower();
   else if (name == LinkParameterMedia)
     m_media = value.lower();
 }
 
 template <typename Iterator>
 LinkHeader::LinkHeader(Iterator begin, Iterator end) : m_isValid(true) {
   std::string url;
   std::unordered_map<std::string, base::Optional<std::string>> params;
@@ skipping 16 matching lines @@
     return;
 
   DCHECK(header.is8Bit()) << "Headers should always be 8 bit";
   std::string headerString(reinterpret_cast<const char*>(header.characters8()),
                            header.length());
   for (const auto& value : link_header_util::SplitLinkHeader(headerString))
     m_headerSet.append(LinkHeader(value.first, value.second));
 }
 
 }  // namespace blink