Chromium directly includes our common/version.h and couldn't build after this change.

This reverts commit f0a2c772.

Change-Id: Iafc41b1a3973f609518fe3588fdb64cecc285332
Reviewed-on: https://chromium-review.googlesource.com/231840Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>