Manual 'cherry pick' to fix CTS tests for MediaControllerTest.

This is to manually apply a patch of code that should have
propagated to E, but hasn't and is breaking one of the CTS
tests for MediaControllerTest on Nemo.

The original reverted change can be found at ag/723643.

Bug: 24172957
Change-Id: I925ff561a56531ebf9f8d8b4ce56156ae7feb9fc