Reset factory of TaskPositioner in test am: 823bf016 am: 02fdef05 am:...

Reset factory of TaskPositioner in test am: 823bf016 am: 02fdef05 am: 83796d78 am: 699b2094 am: 6fbbe77c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23666668



Change-Id: I4f4a6eec4c2128b9ef50da5825dcc20fb1ab3a12
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>