[ Merge of http://go/wvgerrit/78763 ]
The android timer instance is held by a regular pointer rather
than reference counted as all classes that derive from RefBase
should be. This could result in a double deallocation, if the
timer is ever passed to a strong pointer.
Bug: 79364026
Test: WV unit/integration tests. GtsMediaTestCases. Play movies
playback tests.
Change-Id: I01f622bc045e1012f2240b3775a6d121f9415463