Implement new referrer policies

net/url_request/url_request_job.cc

Index: net/url_request/url_request_job.cc
diff --git a/net/url_request/url_request_job.cc b/net/url_request/url_request_job.cc
index 8b5c00211f4dd48dcc0556969ef9738b398aaabe..58425180279fa96e55cf2c17ab9a48a4b40e0b2f 100644
--- a/net/url_request/url_request_job.cc
+++ b/net/url_request/url_request_job.cc
@@ -115,6 +115,24 @@ URLRequest::ReferrerPolicy ProcessReferrerPolicyHeaderOnRedirect(
       new_policy = URLRequest::NEVER_CLEAR_REFERRER;
       continue;
     }
+
+    if (base::CompareCaseInsensitiveASCII(token, "same-origin") == 0) {
+      new_policy = URLRequest::CLEAR_REFERRER_ON_TRANSITION_CROSS_ORIGIN;

[mmenke, 2017/06/07 21:03:58]

Hrm...Wonder if it's better to have clearer policy names, or match names to the
tokens.  Ah, well, this matches the current pattern, regardless.

[estark, 2017/06/08 18:42:58]

Agree, I think it would be better to match the token names from the spec, but
would prefer to do that rename in a separate CL.

+      continue;
+    }
+
+    if (base::CompareCaseInsensitiveASCII(token, "strict-origin") == 0) {
+      new_policy =
+          URLRequest::ORIGIN_CLEAR_ON_TRANSITION_FROM_SECURE_TO_INSECURE;
+      continue;
+    }
+
+    if (base::CompareCaseInsensitiveASCII(
+            token, "strict-origin-when-cross-origin") == 0) {
+      new_policy =
+          URLRequest::REDUCE_REFERRER_GRANULARITY_ON_TRANSITION_CROSS_ORIGIN;
+      continue;
+    }
   }
   return new_policy;
 }
@@ -393,6 +411,14 @@ GURL URLRequestJob::ComputeReferrerForRedirect(
       return original_referrer;
     case URLRequest::ORIGIN:
       return referrer_origin.GetURL();
+    case URLRequest::CLEAR_REFERRER_ON_TRANSITION_CROSS_ORIGIN:
+      if (same_origin)
+        return original_referrer;
+      return GURL();
+    case URLRequest::ORIGIN_CLEAR_ON_TRANSITION_FROM_SECURE_TO_INSECURE:
+      if (secure_referrer_but_insecure_destination)
+        return GURL();
+      return referrer_origin.GetURL();
     case URLRequest::NO_REFERRER:
       return GURL();
     case URLRequest::MAX_REFERRER_POLICY: