test: Replace the C++ MOCK_METHOD<n> macros with the new MOCK_METHOD

Change-Id: I5099c727e9e918f19fa61acc91ef75250ebc6fa6
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/bmc/firmware-handler/test/data_mock.hpp b/bmc/firmware-handler/test/data_mock.hpp
index c8109ad..ad41e63 100644
--- a/bmc/firmware-handler/test/data_mock.hpp
+++ b/bmc/firmware-handler/test/data_mock.hpp
@@ -12,11 +12,13 @@
   public:
     virtual ~DataHandlerMock() = default;
 
-    MOCK_METHOD0(open, bool());
-    MOCK_METHOD0(close, bool());
-    MOCK_METHOD1(copyFrom, std::vector<std::uint8_t>(std::uint32_t));
-    MOCK_METHOD1(writeMeta, bool(const std::vector<std::uint8_t>&));
-    MOCK_METHOD0(readMeta, std::vector<std::uint8_t>());
+    MOCK_METHOD(bool, open, (), (override));
+    MOCK_METHOD(bool, close, (), (override));
+    MOCK_METHOD(std::vector<std::uint8_t>, copyFrom, (std::uint32_t),
+                (override));
+    MOCK_METHOD(bool, writeMeta, (const std::vector<std::uint8_t>&),
+                (override));
+    MOCK_METHOD(std::vector<std::uint8_t>, readMeta, (), (override));
 };
 
 } // namespace ipmi_flash