Merge "Add windowIsFloating to the volume dialog to fix insets issues." into sc-qpr1-dev am: f234de508d am: 82214e172e am: 41277259c2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15909680

Change-Id: I4ce960288878a54eee9347132494837a361fb586