Merge "Do not preload recents activity if it will be visible" into sc-v2-dev...

Merge "Do not preload recents activity if it will be visible" into sc-v2-dev am: 5b7911b8 am: 56640cd1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15319290

Change-Id: I81eff002588e95761c272e98715cce07895c4efe