Index: net/url_request/url_request.h |
diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h |
index 61174192c89e6eb1cd5faa54b39f5871e2ea014b..af972bd2df7c15500b429c99b22e16b28bd55f9e 100644 |
--- a/net/url_request/url_request.h |
+++ b/net/url_request/url_request.h |
@@ -94,14 +94,22 @@ class NET_EXPORT URLRequest : NON_EXPORTED_BASE(public base::NonThreadSafe), |
// referrer header might be cleared, if the protocol changes from HTTPS to |
// HTTP. This is the default behavior of URLRequest, corresponding to |
// CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE. Alternatively, the |
- // referrer policy can be set to never change the referrer header. This |
- // behavior corresponds to NEVER_CLEAR_REFERRER. Embedders will want to use |
- // NEVER_CLEAR_REFERRER when implementing the meta-referrer support |
- // (http://wiki.whatwg.org/wiki/Meta_referrer) and sending requests with a |
- // non-default referrer policy. Only the default referrer policy requires |
- // the referrer to be cleared on transitions from HTTPS to HTTP. |
+ // referrer policy can be set to strip the referrer down to an origin upon |
+ // cross-origin navigation (ORIGIN_ONLY_ON_TRANSITION_CROSS_ORIGIN), or |
+ // never change the referrer header (NEVER_CLEAR_REFERRER). Embedders will |
+ // want to use these options when implementing referrer policy support |
+ // (https://w3c.github.io/webappsec/specs/referrer-policy/). |
+ // |
+ // REDUCE_REFERRER_GRANULARITY_ON_TRANSITION_CROSS_ORIGIN is a slight variant |
+ // on CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE: If the request |
+ // downgrades from HTTPS to HTTP, the referrer will be cleared. If the request |
+ // transitions cross-origin (but does not downgrade), the referrer's |
+ // granularity will be reduced (currently stripped down to an origin rather |
+ // than a full URL). Same-origin requests will send the full referrer. |
enum ReferrerPolicy { |
CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE, |
+ REDUCE_REFERRER_GRANULARITY_ON_TRANSITION_CROSS_ORIGIN, |
+ ORIGIN_ONLY_ON_TRANSITION_CROSS_ORIGIN, |
NEVER_CLEAR_REFERRER, |
}; |