remoting: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

remoting/protocol/negotiating_client_authenticator.cc

Index: remoting/protocol/negotiating_client_authenticator.cc
diff --git a/remoting/protocol/negotiating_client_authenticator.cc b/remoting/protocol/negotiating_client_authenticator.cc
index 6210cefed4e9e7a5ae5c9f71c104b460ecffa7b8..5ab0507ece3cb57de6fceb63f463ab2c6f0294fe 100644
--- a/remoting/protocol/negotiating_client_authenticator.cc
+++ b/remoting/protocol/negotiating_client_authenticator.cc
@@ -28,7 +28,7 @@ NegotiatingClientAuthenticator::NegotiatingClientAuthenticator(
       fetch_secret_callback_(fetch_secret_callback),
       token_fetcher_(token_fetcher.Pass()),
       method_set_by_host_(false),
-      weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+      weak_factory_(this) {
   DCHECK(!methods.empty());
   for (std::vector<AuthenticationMethod>::const_iterator it = methods.begin();
        it != methods.end(); ++it) {