Stop supporting legacy keywords in Referrer-Policy header

net/url_request/url_request_job.cc

 // Copyright (c) 2012 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 "net/url_request/url_request_job.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 61 matching lines @@
     URLRequest* request) {
   URLRequest::ReferrerPolicy new_policy = request->referrer_policy();
 
   std::string referrer_policy_header;
   request->GetResponseHeaderByName("Referrer-Policy", &referrer_policy_header);
   std::vector<std::string> policy_tokens =
       base::SplitString(referrer_policy_header, ",", base::TRIM_WHITESPACE,
                         base::SPLIT_WANT_NONEMPTY);
 
   for (const auto& token : policy_tokens) {
-    if (base::CompareCaseInsensitiveASCII(token, "never") == 0 ||
-        base::CompareCaseInsensitiveASCII(token, "no-referrer") == 0) {
+    if (base::CompareCaseInsensitiveASCII(token, "no-referrer") == 0) {
       new_policy = URLRequest::NO_REFERRER;
       continue;
     }
 
-    if (base::CompareCaseInsensitiveASCII(token, "default") == 0 ||
-        base::CompareCaseInsensitiveASCII(token,
+    if (base::CompareCaseInsensitiveASCII(token,
                                           "no-referrer-when-downgrade") == 0) {
       new_policy =
           URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE;
       continue;
     }
 
     if (base::CompareCaseInsensitiveASCII(token, "origin") == 0) {
       new_policy = URLRequest::ORIGIN;
       continue;
     }
 
     if (base::CompareCaseInsensitiveASCII(token, "origin-when-cross-origin") ==
         0) {
       new_policy = URLRequest::ORIGIN_ONLY_ON_TRANSITION_CROSS_ORIGIN;
       continue;
     }
 
-    if (base::CompareCaseInsensitiveASCII(token, "always") == 0 ||
-        base::CompareCaseInsensitiveASCII(token, "unsafe-url") == 0) {
+    if (base::CompareCaseInsensitiveASCII(token, "unsafe-url") == 0) {
       new_policy = URLRequest::NEVER_CLEAR_REFERRER;
       continue;
     }
   }
   return new_policy;
 }
 
 }  // namespace
 
 URLRequestJob::URLRequestJob(URLRequest* request,
@@ skipping 892 matching lines @@
   int64_t total_sent_bytes = GetTotalSentBytes();
   DCHECK_GE(total_sent_bytes, last_notified_total_sent_bytes_);
   if (total_sent_bytes > last_notified_total_sent_bytes_) {
     network_delegate_->NotifyNetworkBytesSent(
         request_, total_sent_bytes - last_notified_total_sent_bytes_);
   }
   last_notified_total_sent_bytes_ = total_sent_bytes;
 }
 
 }  // namespace net