Merge "Fallback magnification mode settings if window magnification feature is...

Merge "Fallback magnification mode settings if window magnification feature is not supported" into tm-dev am: e4b18075

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17352106



Change-Id: Icb50f8b1239498d033f84f3278c496f6415b3f89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>