Merge "Fix double tap Translucent Letterboxed Activities" into tm-qpr-dev am: ba7143112d am: b817944dd0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19728669

Change-Id: Id3a6d18356c9abdba48ddcfcd8492536bb0c7786
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>