message: include delegate headers
  include GPU and Hexagon delegate headers explicitly
diff: @@ -45,6 +45,13 @@ limitations under the License.
  #include "tensorflow/lite/string_util.h"
  #include "tensorflow/lite/tools/evaluation/utils.h"
  +#if defined(__ANDROID__)
  +#include "tensorflow/lite/delegates/gpu/delegate.h"
  +#if (defined(__arm__) || defined(__aarch64__))
  +#include "tensorflow/lite/experimental/delegates/hexagon/hexagon_delegate.h"
  +#endif
  +#endif
  +
  #define LOG(x) std::cerr
  namespace tflite {
  