tmp_test

tmp_test
Revert "hwc: Remove buffer_fence definition as it is not used"

This reverts commit 3f2323fbbe2ae5200964a801efff82f1accbac79.
tmp_test
Revert "Revert "hwc: Remove buffer_fence definition as it is not used""

This reverts commit 792493b6dcb385a72c3d44d8136b5b5c2bda168c.
Revert "tmp_test"

This reverts commit 5d9b5c2d5edf92f251fec9d6361753eefbb4aa1f.