The assert was checking the value (which is unitialized), rather than
the pointer.

Change-Id: Id8d57953b32b62739e64d88dedd26f0b15a2385f
Reviewed-on: https://chromium-review.googlesource.com/299819Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Hendrik Wagenaar <hendrikw@chromium.org>