Widevine MediaCas client code that works with Android R

plugin/include/cas_util.h

@@ -0,0 +1,21 @@
+// Copyright 2019 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
+
+#ifndef CAS_UTIL_H_
+#define CAS_UTIL_H_
+
+#include <memory>
+
+#if __cplusplus >= 201402L || \
+   (defined __cpp_lib_make_unique && __cpp_lib_make_unique >= 201304L) || \
+   (defined(_MSC_VER) && _MSC_VER >= 1900)
+using std::make_unique;
+#else
+template <typename T, typename... Args>
+std::unique_ptr<T> make_unique(Args&&... args) {
+  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+#endif
+
+#endif //CAS_UTIL_H_