Make HttpAuthController not reference counted.

net/http/http_auth_controller.cc

Index: net/http/http_auth_controller.cc
diff --git a/net/http/http_auth_controller.cc b/net/http/http_auth_controller.cc
index c077ee84d5cdbbc8e3c0c41241f4b23bed45153f..726c18267b15c89150ae8484aedda5e4de1669c3 100644
--- a/net/http/http_auth_controller.cc
+++ b/net/http/http_auth_controller.cc
@@ -219,8 +219,8 @@ int HttpAuthController::HandleAuthChallenge(
   return OK;
 }
 
-void HttpAuthController::ResetAuth(const std::wstring& username,
-                                   const std::wstring& password) {
+void HttpAuthController::SetCredentials(const std::wstring& username,
+                                        const std::wstring& password) {
   DCHECK(identity_.invalid || (username.empty() && password.empty()));
 
   if (identity_.invalid) {
@@ -230,7 +230,9 @@ void HttpAuthController::ResetAuth(const std::wstring& username,
     identity_.username = username;
     identity_.password = password;
   }
+}
 
+void HttpAuthController::PrepareForAuthRestart() {
   DCHECK(identity_.source != HttpAuth::IDENT_SRC_PATH_LOOKUP);
 
   // Add the auth entry to the cache before restarting. We don't know whether