Switch //components away from base::ListValue::Append(Value*) overload.

components/json_schema/json_schema_validator_unittest_base.cc

Index: components/json_schema/json_schema_validator_unittest_base.cc
diff --git a/components/json_schema/json_schema_validator_unittest_base.cc b/components/json_schema/json_schema_validator_unittest_base.cc
index 2c4c4e17d5204db08e3121fe476cc09d74b75c10..a1da991f9548b5ba4daccb8dda48862b3e0edaca 100644
--- a/components/json_schema/json_schema_validator_unittest_base.cc
+++ b/components/json_schema/json_schema_validator_unittest_base.cc
@@ -13,6 +13,7 @@
 #include "base/files/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ -98,7 +99,7 @@ void JSONSchemaValidatorTestBase::TestComplex() {
   ExpectValid(TEST_SOURCE, instance.get(), schema.get(), NULL);
   instance->Remove(instance->GetSize() - 1, NULL);
   ExpectValid(TEST_SOURCE, instance.get(), schema.get(), NULL);
-  instance->Append(new base::DictionaryValue());
+  instance->Append(base::MakeUnique<base::DictionaryValue>());
   ExpectNotValid(TEST_SOURCE, instance.get(), schema.get(), NULL, "1",
                  JSONSchemaValidator::FormatErrorMessage(
                      JSONSchemaValidator::kInvalidType,