chore: import upstream snapshot with attribution

tensorflow/lite/profiling/time.h

@@ -0,0 +1,28 @@
+/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+#ifndef TENSORFLOW_LITE_PROFILING_TIME_H_
+#define TENSORFLOW_LITE_PROFILING_TIME_H_
+
+#include <cstdint>
+
+namespace tflite {
+namespace profiling {
+namespace time {
+uint64_t NowMicros();
+void SleepForMicros(uint64_t micros);
+}  // namespace time
+}  // namespace profiling
+}  // namespace tflite
+#endif  // TENSORFLOW_LITE_PROFILING_TIME_H_