Add OVERRIDE to jingle/.

jingle/notifier/communicator/single_login_attempt.h

Index: jingle/notifier/communicator/single_login_attempt.h
diff --git a/jingle/notifier/communicator/single_login_attempt.h b/jingle/notifier/communicator/single_login_attempt.h
index 89607670d69718f84ca3e9541d898861adf7004e..2bdab1fc2a7b046508c372cbf08a121b9b1c705b 100644
--- a/jingle/notifier/communicator/single_login_attempt.h
+++ b/jingle/notifier/communicator/single_login_attempt.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "jingle/notifier/base/xmpp_connection.h"
 #include "jingle/notifier/communicator/xmpp_connection_generator.h"
@@ -46,15 +47,16 @@ class SingleLoginAttempt : public XmppConnection::Delegate,
   virtual ~SingleLoginAttempt();
 
   // XmppConnection::Delegate implementation.
-  virtual void OnConnect(base::WeakPtr<buzz::XmppTaskParentInterface> parent);
+  virtual void OnConnect(
+      base::WeakPtr<buzz::XmppTaskParentInterface> parent) OVERRIDE;
   virtual void OnError(buzz::XmppEngine::Error error,
                        int error_subcode,
-                       const buzz::XmlElement* stream_error);
+                       const buzz::XmlElement* stream_error) OVERRIDE;
 
   // XmppConnectionGenerator::Delegate implementation.
-  virtual void OnNewSettings(const ConnectionSettings& new_settings);
+  virtual void OnNewSettings(const ConnectionSettings& new_settings) OVERRIDE;
   virtual void OnExhaustedSettings(bool successfully_resolved_dns,
-                                   int first_dns_error);
+                                   int first_dns_error) OVERRIDE;
 
  private:
   LoginSettings* login_settings_;