Merge "Fix wrong candidate window when display immersive_mode_confirm." into rvc-dev am: 0bf88c5ad2 am: a56ba188c9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12166481

Change-Id: I74c2761696655e02c31283c287c7bb2e2d04ed2b