We would miss expanding the else-if clauses in a chain
of selection statements.

BUG=346463
BUG=391697

Change-Id: Iee644b875cf68d0ed3dc0b73542efc49ecb23242
Reviewed-on: https://chromium-review.googlesource.com/206822Reviewed-by: Nicolas Capens <capn@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/207832