Hide SAW subwindows am: 89bc634cb5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/27158039

Change-Id: I5ad68a3f359efa794b15293b0851b8e4f3c4c430
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>