Fix bug where back swipe to icon in All Apps search result.

Issue is that All Apps is scaling during the animation, so when
FloatingIconView looks for it in the view hierarchy,
it's not in its final position.

This would be the cleanest approach for a scv2 fix

Bug: 213306709
Test: manual
Change-Id: Iaec77d15c9533edccd9c82164143af8fa522158f
Merged-In: Iaec77d15c9533edccd9c82164143af8fa522158f