Implement new referrer policies

third_party/WebKit/public/platform/WebReferrerPolicy.h

Index: third_party/WebKit/public/platform/WebReferrerPolicy.h
diff --git a/third_party/WebKit/public/platform/WebReferrerPolicy.h b/third_party/WebKit/public/platform/WebReferrerPolicy.h
index 1f45f15ad7b93bdab1d9adf61e7dcff437f8e2bf..06c20093e59766ac6adbae57583df1da68673390 100644
--- a/third_party/WebKit/public/platform/WebReferrerPolicy.h
+++ b/third_party/WebKit/public/platform/WebReferrerPolicy.h
@@ -40,6 +40,10 @@ enum WebReferrerPolicy {
   kWebReferrerPolicyNever,
   kWebReferrerPolicyOrigin,
   kWebReferrerPolicyOriginWhenCrossOrigin,
+  kWebReferrerPolicySameOrigin,

[jochen (gone - plz use gerrit), 2017/06/06 14:51:27]

these should go at the end, as we write the static_cast<int> version to
navigation entries on disk/sync, and adding them in the middle will confuse
older clients

[estark, 2017/06/06 22:41:00]

Ah, ok, good to know. Switched the order, and added a comment at the top.

+  kWebReferrerPolicyStrictOrigin,
+  // This policy corresponds to strict-origin-when-cross-origin.
+  // TODO(estark): rename to match the spec.
   kWebReferrerPolicyNoReferrerWhenDowngradeOriginWhenCrossOrigin,
   kWebReferrerPolicyLast =
       kWebReferrerPolicyNoReferrerWhenDowngradeOriginWhenCrossOrigin