tree 2551d295da89029c75f6a9219a6bc1a3b2980b98
parent 1f72838954cb3689fb58eef6276553d9a45ff0a8
author Dongwon Kang <dwkang@google.com> 1570979854 -0700
committer Dongwon Kang <dwkang@google.com> 1571162429 -0700

Make DataSourceFactory singletone

This is preparation for having a subclass of DataSourceFactory which
is only used in mediaserver process with OMA (forward-lock) use case.

Test: build
Bug: 142567168
Change-Id: I2a1ab3d1ae89f657a84376d9a95d4e814b545b4f