Add OVERRIDE to jingle/.

jingle/notifier/base/weak_xmpp_client.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A thin wrapper around buzz::XmppClient that exposes weak pointers
 // so that users know when the buzz::XmppClient becomes invalid to use
 // (not necessarily only at destruction time).
 
 #ifndef JINGLE_NOTIFIER_BASE_WEAK_XMPP_CLIENT_H_
 #define JINGLE_NOTIFIER_BASE_WEAK_XMPP_CLIENT_H_
 #pragma once
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "talk/xmpp/xmppclient.h"
 
 namespace talk_base {
 class TaskParent;
 }  // namespace
 
 namespace notifier {
 
 // buzz::XmppClient's destructor isn't marked virtual, but it inherits
 // from talk_base::Task, whose destructor *is* marked virtual, so we
 // can safely inherit from it.
 class WeakXmppClient : public buzz::XmppClient {
  public:
   explicit WeakXmppClient(talk_base::TaskParent* parent);
 
   virtual ~WeakXmppClient();
 
   // Returns a weak pointer that is invalidated when the XmppClient
   // becomes invalid to use.
   base::WeakPtr<WeakXmppClient> AsWeakPtr();
 
   // Invalidates all weak pointers to this object.  (This method is
   // necessary as calling Abort() does not always lead to Stop() being
   // called, so it's not a reliable way to cause an invalidation.)
   void Invalidate();
 
  protected:
-  virtual void Stop();
+  virtual void Stop() OVERRIDE;
 
  private:
   base::NonThreadSafe non_thread_safe_;
   // We use our own WeakPtrFactory instead of inheriting from
   // SupportsWeakPtr since we want to invalidate in other places
   // besides the destructor.
   base::WeakPtrFactory<WeakXmppClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WeakXmppClient);
 };
 
 }  // namespace notifier
 
 #endif  // JINGLE_NOTIFIER_BASE_WEAK_XMPP_CLIENT_H_