The android timer class was not generating timer events correctly. This caused renewal and expiration events not to be sent. A strong pointer to the timer thread was not held and this caused the android util timer thread to exit after firing once. This is now addressed. Bug: 8736545 Merge of https://widevine-internal-review.googlesource.com/#/c/5353/ from the Widevine CDM repository. Change-Id: I2d904e55d4d10eacc1a51f1c6b5c1a267c92c8d8