Implement new referrer policies

third_party/WebKit/public/platform/WebReferrerPolicy.h

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebReferrerPolicy_h
 #define WebReferrerPolicy_h
 
 namespace blink {
 
+// These values are serialized and persisted, so do not remove values and add
+// new ones at the end.
 enum WebReferrerPolicy {
   kWebReferrerPolicyAlways,
   kWebReferrerPolicyDefault,
   kWebReferrerPolicyNoReferrerWhenDowngrade,
   kWebReferrerPolicyNever,
   kWebReferrerPolicyOrigin,
   kWebReferrerPolicyOriginWhenCrossOrigin,
+  // This policy corresponds to strict-origin-when-cross-origin.
+  // TODO(estark): rename to match the spec.
   kWebReferrerPolicyNoReferrerWhenDowngradeOriginWhenCrossOrigin,
-  kWebReferrerPolicyLast =
-      kWebReferrerPolicyNoReferrerWhenDowngradeOriginWhenCrossOrigin
+  kWebReferrerPolicySameOrigin,
+  kWebReferrerPolicyStrictOrigin,
+  kWebReferrerPolicyLast = kWebReferrerPolicyStrictOrigin
 };
 
 }  // namespace blink
 
 #endif