Remove Referrer Policy from URLFetcher.

net/url_request/url_fetcher.h

Index: net/url_request/url_fetcher.h
diff --git a/net/url_request/url_fetcher.h b/net/url_request/url_fetcher.h
index a83181953ea4e1bae253cae50c6aeb2c4e92b94f..80ff3297d6c6d939afb4d240dfe1697a6275ebe2 100644
--- a/net/url_request/url_fetcher.h
+++ b/net/url_request/url_fetcher.h
@@ -171,11 +171,6 @@ class NET_EXPORT URLFetcher {
   // started.
   virtual void SetReferrer(const std::string& referrer) = 0;
 
-  // The referrer policy to apply when updating the referrer during redirects.
-  // The referrer policy may only be changed before Start() is called.
-  virtual void SetReferrerPolicy(
-      URLRequest::ReferrerPolicy referrer_policy) = 0;
-
   // Set extra headers on the request.  Must be called before the request
   // is started.
   // This replaces the entire extra request headers.