Previous change broke A/V sync, this is a better change to eliminate negative media positions.
Previous change broke A/V sync, this is a better change to eliminate negative media positions.

related-to-bug: 2414900

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base