Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/printing/cloud_print/cloud_print_proxy_service.cc

 // Copyright (c) 2012 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/browser/printing/cloud_print/cloud_print_proxy_service.h"
 
 #include <stack>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 136 matching lines @@
       for (size_t i = 0; i < list->GetSize(); ++i) {
         std::string printer;
         if (list->GetString(i, &printer))
           printers->push_back(printer);
       }
     }
   } else {
     printing::PrinterList printer_list;
     scoped_refptr<printing::PrintBackend> backend(
         printing::PrintBackend::CreateInstance(NULL));
-    if (backend)
+    if (backend.get())
       backend->EnumeratePrinters(&printer_list);
     for (size_t i = 0; i < printer_list.size(); ++i)
       printers->push_back(printer_list[i].printer_name);
   }
 }
 
 void CloudPrintProxyService::RefreshCloudPrintProxyStatus() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   ServiceProcessControl* process_control = GetServiceProcessControl();
   DCHECK(process_control->IsConnected());
@@ skipping 45 matching lines @@
 }
 
 bool CloudPrintProxyService::InvokeServiceTask(const base::Closure& task) {
   GetServiceProcessControl()->Launch(task, base::Closure());
   return true;
 }
 
 ServiceProcessControl* CloudPrintProxyService::GetServiceProcessControl() {
   return ServiceProcessControl::GetInstance();
 }