Merge "Don't show immersive mode dialog over dream window" into rvc-dev am:...

Merge "Don't show immersive mode dialog over dream window" into rvc-dev am: 3a21399c am: 226cb31b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11953484

Change-Id: Ic25f8d83f4d8bc48440783f62b72c35c66832b6b