Add support for delegated Kerberos tickets during Negotiate authentication.

net/http/http_auth_filter.cc

Index: net/http/http_auth_filter.cc
===================================================================
--- net/http/http_auth_filter.cc	(revision 57541)
+++ net/http/http_auth_filter.cc	(working copy)
@@ -16,7 +16,9 @@
 // entries in the registry mean that you are only allowed to connect to the site
 // via HTTPS and still be considered 'safe'.
 
-HttpAuthFilterWhitelist::HttpAuthFilterWhitelist() {
+HttpAuthFilterWhitelist::HttpAuthFilterWhitelist(
+    const std::string& server_whitelist) {
+  SetWhitelist(server_whitelist);
 }
 
 HttpAuthFilterWhitelist::~HttpAuthFilterWhitelist() {