Merge changes from topic "presubmit-am-18aec42390d04aa8a4e2f55d5cd84739"
* changes:
[automerge] Add unit test on sending power hints in SurfaceFlinger 2p: 839fe5b4 2p: 4cc21cfc
[automerge] Add unit test on sending power hints in SurfaceFlinger 2p: 839fe5b4
Add unit test on sending power hints in SurfaceFlinger