Merge "Merge "Make WallpaperMS bind wallpaper component PendingIntent...

Merge "Merge "Make WallpaperMS bind wallpaper component PendingIntent immutable." into pi-dev am: 416332cf" into qt-dev am: 2426f275 am: 8a6fa4c1 am: 75b76436

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12715966

Change-Id: I0c3392d430cab51f285c4a21b9891c0e7cc59c4f