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

tools/json_schema_compiler/test/functions_on_types_unittest.cc

Index: tools/json_schema_compiler/test/functions_on_types_unittest.cc
diff --git a/tools/json_schema_compiler/test/functions_on_types_unittest.cc b/tools/json_schema_compiler/test/functions_on_types_unittest.cc
index 71674854a495f9289c4053c8826214776bbd3698..4aa77ed8bb3f1e3fc14f8130eca43d3ea45ff169 100644
--- a/tools/json_schema_compiler/test/functions_on_types_unittest.cc
+++ b/tools/json_schema_compiler/test/functions_on_types_unittest.cc
@@ -2,9 +2,12 @@
 // 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;
 
@@ -64,7 +67,7 @@ TEST(JsonSchemaCompilerFunctionsOnTypesTest, ChromeSettingGetParamsCreate) {
       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());