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

tools/json_schema_compiler/util.h

 // 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.
 
 #ifndef TOOLS_JSON_SCHEMA_COMPILER_UTIL_H_
 #define TOOLS_JSON_SCHEMA_COMPILER_UTIL_H_
 
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 84 matching lines @@
   return true;
 }
 
 // Populates |out| with |list|. Returns false if there is no list at the
 // specified key or if the list has anything other than |T|.
 template <class T>
 bool PopulateArrayFromList(const base::ListValue& list, std::vector<T>* out) {
   out->clear();
   T item;
   for (const auto& value : list) {
-    if (!PopulateItem(value, &item))
+    if (!PopulateItem(*value, &item))
       return false;
     // T might not be movable, but in that case it should be copyable, and this
     // will still work.
     out->push_back(std::move(item));
   }
 
   return true;
 }
 
 // Populates |out| with |list|. Returns false and sets |error| if there is no
 // list at the specified key or if the list has anything other than |T|.
 template <class T>
 bool PopulateArrayFromList(const base::ListValue& list,
                            std::vector<T>* out,
                            base::string16* error) {
   out->clear();
   T item;
   for (const auto& value : list) {
-    if (!PopulateItem(value, &item, error))
+    if (!PopulateItem(*value, &item, error))
       return false;
     out->push_back(std::move(item));
   }
 
   return true;
 }
 
 // Creates a new vector containing |list| at |out|. Returns
 // true on success or if there is nothing at the specified key. Returns false
 // if anything other than a list of |T| is at the specified key.
@@ skipping 72 matching lines @@
 template <class T>
 std::unique_ptr<base::Value> CreateValueFromOptionalArray(
     const std::unique_ptr<std::vector<T>>& from) {
   return from ? CreateValueFromArray(*from) : nullptr;
 }
 
 }  // namespace util
 }  // namespace json_schema_compiler
 
 #endif  // TOOLS_JSON_SCHEMA_COMPILER_UTIL_H_