Merge "Revert "Post SearchFragment dismissal to the next frame when user is searching"" into rvc-dev am: 0b814377 am: 2b2d018b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/DocumentsUI/+/11418189

Change-Id: I386e04546ffe82b077e14ca88da35726664bfe00