Add layout test for motion jpeg images

Mark as failing in TestExpectations pending a [ NeedsRebaseline ]

TBR=leviw@chromium.org
BUG=363890
NOTRY=true

Review URL: https://codereview.chromium.org/240023002

git-svn-id: svn://svn.chromium.org/blink/trunk@171743 bbb929c8-8fbe-4397-9dbb-9b2b20218538