Updates #22460.

Change-Id: I6656d478625e5e54aa2eaa38d99dfb0f71ea1fdd
Reviewed-on: https://go-review.googlesource.com/92697
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>