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

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"
@@ skipping 23 matching lines @@
     ASSERT_TRUE(params);
     ASSERT_TRUE(params->keys);
     EXPECT_EQ("test", *params->keys->as_string);
   }
   {
     std::unique_ptr<base::DictionaryValue> keys_object_value(
         new base::DictionaryValue());
     keys_object_value->SetInteger("integer", 5);
     keys_object_value->SetString("string", "string");
     std::unique_ptr<base::ListValue> params_value(new base::ListValue());
-    params_value->Append(keys_object_value->DeepCopy());
+    params_value->Append(keys_object_value->CreateDeepCopy());
     std::unique_ptr<StorageArea::Get::Params> params(
         StorageArea::Get::Params::Create(*params_value));
     ASSERT_TRUE(params);
     ASSERT_TRUE(params->keys);
     EXPECT_TRUE(keys_object_value->Equals(
         &params->keys->as_object->additional_properties));
   }
 }
 
 TEST(JsonSchemaCompilerFunctionsOnTypesTest, StorageAreaGetResultCreate) {
@@ skipping 11 matching lines @@
   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(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);
 }