Change base::Value::ListStorage to std::vector<base::Value>

chrome/browser/printing/cloud_print/cloud_print_printer_list.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 "chrome/browser/printing/cloud_print/cloud_print_printer_list.h"
 
 #include <utility>
 
 #include "chrome/common/cloud_print/cloud_print_constants.h"
 #include "components/cloud_devices/common/cloud_devices_urls.h"
@@ skipping 24 matching lines @@
 
   if (!value.GetList(cloud_print::kPrinterListValue, &printers)) {
     delegate_->OnDeviceListUnavailable();
     return;
   }
 
   DeviceList devices;
   for (base::ListValue::const_iterator i = printers->begin();
        i != printers->end();
        i++) {
-    base::DictionaryValue* printer;
+    const base::DictionaryValue* printer;
     Device printer_details;
 
-    if (!(*i)->GetAsDictionary(&printer))
+    if (!i->GetAsDictionary(&printer))
       continue;
 
     if (!FillPrinterDetails(*printer, &printer_details))
       continue;
 
     devices.push_back(printer_details);
   }
 
   delegate_->OnDeviceListReady(devices);
 }
@@ skipping 14 matching lines @@
   }
 
   // Non-essential.
   printer_value.GetString(cloud_print::kPrinterDescValue,
                           &printer_details->description);
 
   return true;
 }
 
 }  // namespace cloud_print