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

chrome/browser/ui/webui/md_downloads/downloads_list_tracker_unittest.cc

 // Copyright 2015 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/ui/webui/md_downloads/downloads_list_tracker.h"
 
 #include <limits.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 28 matching lines @@
   CHECK_GE(id, 0);
   return static_cast<uint64_t>(id);
 }
 
 std::vector<uint64_t> GetIds(const base::Value& value) {
   std::vector<uint64_t> ids;
 
   const base::ListValue* list;
   if (value.GetAsList(&list)) {
     for (const auto& list_item : *list)
-      ids.push_back(GetId(list_item));
+      ids.push_back(GetId(*list_item));
   } else {
     ids.push_back(GetId(value));
   }
 
   return ids;
 }
 
 int GetIndex(const base::Value* value) {
   CHECK(value);
   int index;
@@ skipping 288 matching lines @@
   EXPECT_EQ(1u, GetIds(*web_ui()->call_data()[0]->arg2()).size());
 
   DownloadItemModel(unsent_item).SetShouldShowInShelf(false);
   tracker()->OnDownloadUpdated(manager(), unsent_item);
   EXPECT_EQ(1u, web_ui()->call_data().size());
 
   DownloadItemModel(unsent_item).SetShouldShowInShelf(true);
   tracker()->OnDownloadUpdated(manager(), unsent_item);
   EXPECT_EQ(1u, web_ui()->call_data().size());
 }