Merge "Increase size of the back/ime switcher buttons in gesture nav" into...

Merge "Increase size of the back/ime switcher buttons in gesture nav" into sc-dev am: 68839f4b am: 8037fa5d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14491497

Change-Id: Ib72ad9d3677d40ae44c193afcdef3ec84f7ef152