Fix failure to disable cloud print connector.

chrome/service/cloud_print/cloud_print_proxy.cc

 // 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.
 
 #include "chrome/service/cloud_print/cloud_print_proxy.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
@@ skipping 153 matching lines @@
                                             print_system_settings,
                                             oauth_client_info,
                                             enable_job_poll));
   return true;
 }
 
 void CloudPrintProxy::DisableForUser() {
   DCHECK(CalledOnValidThread());
   user_email_.clear();
   enabled_ = false;
-  Shutdown();
   if (client_) {
     client_->OnCloudPrintProxyDisabled(true);
   }
+  Shutdown();
 }
 
 void CloudPrintProxy::GetProxyInfo(cloud_print::CloudPrintProxyInfo* info) {
   info->enabled = enabled_;
   info->email.clear();
   if (enabled_)
     info->email = user_email();
   info->proxy_id = proxy_id_;
   // If the Cloud Print service is not enabled, we may need to read the old
   // value of proxy_id from prefs.
@@ skipping 46 matching lines @@
   }
 }
 
 void CloudPrintProxy::Shutdown() {
   DCHECK(CalledOnValidThread());
   if (backend_.get())
     backend_->Shutdown();
   backend_.reset();
 }