Merge "Skip scheduling cached app compaction if there's already a pending one"...

Merge "Skip scheduling cached app compaction if there's already a pending one" into sc-dev am: 98e97003

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13973678

Change-Id: I25530a8c2374b1eeaf88794f14df430c15498538