Update {virtual,override} to follow C++11 style in cloud_print.

cloud_print/service/win/cloud_print_service_config.cc

 // Copyright 2013 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.
 
 #include <atlbase.h>
 #include <atlapp.h>  // NOLINT
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 16 matching lines @@
 using cloud_print::LoadLocalString;
 using cloud_print::GetErrorMessage;
 
 class SetupDialog : public base::RefCounted<SetupDialog>,
                     public ATL::CDialogImpl<SetupDialog> {
  public:
   // Enables accelerators.
   class Dispatcher : public base::MessagePumpDispatcher {
    public:
     explicit Dispatcher(SetupDialog* dialog) : dialog_(dialog) {}
-    virtual ~Dispatcher() {};
+    ~Dispatcher() override {}
 
     // MessagePumpDispatcher:
-    virtual uint32_t Dispatch(const MSG& msg) override {
+    uint32_t Dispatch(const MSG& msg) override {
       MSG msg2 = msg;
       uint32_t action = POST_DISPATCH_NONE;
       if (!dialog_->IsDialogMessage(&msg2))
         action = POST_DISPATCH_PERFORM_DEFAULT;
       return action;
     }
 
    private:
     scoped_refptr<SetupDialog> dialog_;
   };
@@ skipping 396 matching lines @@
 
   base::MessageLoopForUI loop;
   scoped_refptr<SetupDialog> dialog(new SetupDialog());
   dialog->Create(NULL);
   dialog->ShowWindow(SW_SHOW);
   SetupDialog::Dispatcher dispatcher(dialog.get());
   base::RunLoop run_loop(&dispatcher);
   run_loop.Run();
   return 0;
 }