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

chrome/browser/chromeos/printing/printers_manager.cc

 // Copyright 2016 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/chromeos/printing/printers_manager.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 162 matching lines @@
 // |recommended_printers_|.
 void PrintersManager::UpdateRecommendedPrinters() {
   const PrefService* prefs = profile_->GetPrefs();
 
   const base::ListValue* values =
       prefs->GetList(prefs::kRecommendedNativePrinters);
 
   recommended_printer_ids_.clear();
   for (const auto& value : *values) {
     std::string printer_json;
-    if (!value.GetAsString(&printer_json)) {
+    if (!value->GetAsString(&printer_json)) {
       NOTREACHED();
       continue;
     }
 
     std::unique_ptr<base::DictionaryValue> printer_dictionary =
         base::DictionaryValue::From(base::JSONReader::Read(
             printer_json, base::JSON_ALLOW_TRAILING_COMMAS));
 
     if (!printer_dictionary) {
       LOG(WARNING) << "Ignoring invalid printer.  Invalid JSON object: "
                    << printer_json;
       continue;
     }
 
     // Policy printers don't have id's but the ids only need to be locally
     // unique so we'll hash the record.  This will not collide with the UUIDs
     // generated for user entries.
     std::string id = base::MD5String(printer_json);
     printer_dictionary->SetString(printing::kPrinterId, id);
 
     recommended_printer_ids_.push_back(id);
     recommended_printers_[id] = std::move(printer_dictionary);
   }
 }
 
 }  // namespace chromeos