Remove ListValue::Append(new {Fundamental,String}Value(...)) pattern in //tools

tools/json_schema_compiler/test/additional_properties_unittest.cc

Index: tools/json_schema_compiler/test/additional_properties_unittest.cc
diff --git a/tools/json_schema_compiler/test/additional_properties_unittest.cc b/tools/json_schema_compiler/test/additional_properties_unittest.cc
index 67efea849bfeed031c4f9ef38225716557dd19bb..1d1750ab3b87e3175f49cbc16518d9fb9e1ff14f 100644
--- a/tools/json_schema_compiler/test/additional_properties_unittest.cc
+++ b/tools/json_schema_compiler/test/additional_properties_unittest.cc
@@ -14,8 +14,8 @@ TEST(JsonSchemaCompilerAdditionalPropertiesTest,
     AdditionalPropertiesTypePopulate) {
   {
     std::unique_ptr<base::ListValue> list_value(new base::ListValue());
-    list_value->Append(new base::StringValue("asdf"));
-    list_value->Append(new base::FundamentalValue(4));
+    list_value->AppendString("asdf");
+    list_value->AppendInteger(4);
     std::unique_ptr<base::DictionaryValue> type_value(
         new base::DictionaryValue());
     type_value->SetString("string", "value");