json_schema_compiler: Don't use deprecated ListValue::Append(Value*) overload.

tools/json_schema_compiler/test/test_util.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 "tools/json_schema_compiler/test/test_util.h"
 
 #include <string>
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 
 namespace json_schema_compiler {
 namespace test_util {
 
 std::unique_ptr<base::Value> ReadJson(const base::StringPiece& json) {
   int error_code;
   std::string error_msg;
   std::unique_ptr<base::Value> result(base::JSONReader::ReadAndReturnError(
       json, base::JSON_ALLOW_TRAILING_COMMAS, &error_code, &error_msg));
   // CHECK not ASSERT since passing invalid |json| is a test error.
   CHECK(result) << error_msg;
   return result;
 }
 
 std::unique_ptr<base::ListValue> List(base::Value* a) {
   std::unique_ptr<base::ListValue> list(new base::ListValue());
-  list->Append(a);
+  list->Append(base::WrapUnique(a));
   return list;
 }
 std::unique_ptr<base::ListValue> List(base::Value* a, base::Value* b) {
   std::unique_ptr<base::ListValue> list = List(a);
-  list->Append(b);
+  list->Append(base::WrapUnique(b));
   return list;
 }
 std::unique_ptr<base::ListValue> List(base::Value* a,
                                       base::Value* b,
                                       base::Value* c) {
   std::unique_ptr<base::ListValue> list = List(a, b);
-  list->Append(c);
+  list->Append(base::WrapUnique(c));
   return list;
 }
 
 std::unique_ptr<base::DictionaryValue> Dictionary(const std::string& ak,
                                                   base::Value* av) {
   std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
   dict->SetWithoutPathExpansion(ak, av);
   return dict;
 }
 std::unique_ptr<base::DictionaryValue> Dictionary(const std::string& ak,
@@ skipping 10 matching lines @@
                                                   base::Value* bv,
                                                   const std::string& ck,
                                                   base::Value* cv) {
   std::unique_ptr<base::DictionaryValue> dict = Dictionary(ak, av, bk, bv);
   dict->SetWithoutPathExpansion(ck, cv);
   return dict;
 }
 
 }  // namespace test_util
 }  // namespace json_schema_compiler