Revert of 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 "base/values.h"
 #include "chrome/common/cloud_print/cloud_print_constants.h"
 #include "components/cloud_devices/common/cloud_devices_urls.h"
 
@@ skipping 14 matching lines @@
 void CloudPrintPrinterList::OnGCDApiFlowComplete(
     const base::DictionaryValue& value) {
   const base::ListValue* printers;
   if (!value.GetList(cloud_print::kPrinterListValue, &printers)) {
     delegate_->OnDeviceListUnavailable();
     return;
   }
 
   DeviceList devices;
   for (const auto& printer : *printers) {
-    const base::DictionaryValue* printer_dict;
-    if (!printer.GetAsDictionary(&printer_dict))
+    base::DictionaryValue* printer_dict;
+    if (!printer->GetAsDictionary(&printer_dict))
       continue;
 
     Device printer_details;
     if (!FillPrinterDetails(*printer_dict, &printer_details))
       continue;
 
     devices.push_back(printer_details);
   }
 
   delegate_->OnDeviceListReady(devices);
@@ skipping 20 matching lines @@
   }
 
   // Non-essential.
   printer_value.GetString(cloud_print::kPrinterDescValue,
                           &printer_details->description);
 
   return true;
 }
 
 }  // namespace cloud_print