Widevine MediaCas client code that works with Android R

wvutil/include/clock.h

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+// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
+//
+// Clock - Platform independent interface for a time library
+//
+#ifndef WV_UTIL_CLOCK_H_
+#define WV_UTIL_CLOCK_H_
+
+#include <stdint.h>
+
+namespace wvutil {
+
+// Provides time related information. The implementation is platform dependent.
+class Clock {
+ public:
+  Clock() {}
+  virtual ~Clock() {}
+
+  // Provides the number of seconds since an epoch - 01/01/1970 00:00 UTC
+  virtual int64_t GetCurrentTime();
+};
+
+}  // namespace wvutil
+
+#endif  // WV_UTIL_CLOCK_H_