Implement new referrer policies

third_party/WebKit/Source/core/dom/ExecutionContext.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 197 matching lines @@
                                   : kDoNotSupportReferrerPolicyLegacyKeywords,
           &referrer_policy)) {
     AddConsoleMessage(ConsoleMessage::Create(
         kRenderingMessageSource, kErrorMessageLevel,
         "Failed to set referrer policy: The value '" + policies +
             "' is not one of " +
             (support_legacy_keywords
                  ? "'always', 'default', 'never', 'origin-when-crossorigin', "
                  : "") +
             "'no-referrer', 'no-referrer-when-downgrade', 'origin', "
-            "'origin-when-cross-origin', or 'unsafe-url'. The referrer policy "
+            "'origin-when-cross-origin', 'same-origin', 'strict-origin', "
+            "'strict-origin-when-cross-origin', or 'unsafe-url'. The referrer "
+            "policy "
             "has been left unchanged."));
     return;
   }
 
   SetReferrerPolicy(referrer_policy);
 }
 
 void ExecutionContext::SetReferrerPolicy(ReferrerPolicy referrer_policy) {
   // When a referrer policy has already been set, the latest value takes
   // precedence.
   UseCounter::Count(this, WebFeature::kSetReferrerPolicy);
   if (referrer_policy_ != kReferrerPolicyDefault)
     UseCounter::Count(this, WebFeature::kResetReferrerPolicy);
 
   referrer_policy_ = referrer_policy;
 }
 
 void ExecutionContext::RemoveURLFromMemoryCache(const KURL& url) {
   GetMemoryCache()->RemoveURLFromCache(url);
 }
 
 DEFINE_TRACE(ExecutionContext) {
   visitor->Trace(public_url_manager_);
   visitor->Trace(pending_exceptions_);
   ContextLifecycleNotifier::Trace(visitor);
   Supplementable<ExecutionContext>::Trace(visitor);
 }
 
 }  // namespace blink