* Fix CPPLint in data_device_transform_test

* Fix compilation error

* Fix compilation error

* Fix CPPLint errors in data_layout_transform_test

* Fix CPPLint errors in data_type_transform_test

* Fix CPPLint errors in data_type_transform_test.cu

* Fix compilation error

* Fix CPPLint issues in threadpool_test

* Fix CPPLInt issues in op_registry_test

* Fix CPPLint issues in operator_test

* Fix compilation error

* test