base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

tools/json_schema_compiler/test/functions_on_types_unittest.cc

 // 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.
 
+#include "tools/json_schema_compiler/test/functions_on_types.h"
+
+#include <utility>
+
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "tools/json_schema_compiler/test/functions_on_types.h"
 
 using namespace test::api::functions_on_types;
 
 TEST(JsonSchemaCompilerFunctionsOnTypesTest, StorageAreaGetParamsCreate) {
   {
     std::unique_ptr<base::ListValue> params_value(new base::ListValue());
     std::unique_ptr<StorageArea::Get::Params> params(
         StorageArea::Get::Params::Create(*params_value));
     ASSERT_TRUE(params);
     EXPECT_FALSE(params->keys);
@@ skipping 39 matching lines @@
   base::DictionaryValue* item_result = NULL;
   ASSERT_TRUE(results->GetDictionary(0, &item_result));
   EXPECT_TRUE(item_result->Equals(&items.additional_properties));
 }
 
 TEST(JsonSchemaCompilerFunctionsOnTypesTest, ChromeSettingGetParamsCreate) {
   std::unique_ptr<base::DictionaryValue> details_value(
       new base::DictionaryValue());
   details_value->SetBoolean("incognito", true);
   std::unique_ptr<base::ListValue> params_value(new base::ListValue());
-  params_value->Append(details_value.release());
+  params_value->Append(std::move(details_value));
   std::unique_ptr<ChromeSetting::Get::Params> params(
       ChromeSetting::Get::Params::Create(*params_value));
   EXPECT_TRUE(params.get());
   EXPECT_TRUE(*params->details.incognito);
 }