Poke at origin-exact-matching expectations again.

BUG=344294
TBR=ager@chromium.org
NOTREECHECK=true
NOTRY=true

Review URL: https://codereview.chromium.org/172293005

git-svn-id: svn://svn.chromium.org/blink/trunk@167420 bbb929c8-8fbe-4397-9dbb-9b2b20218538