Fix embed-attributes-style.html test expectation.
Fix embed-attributes-style.html test expectation.

Apparently Failure does not include ImageOnlyFailure.

BUG=242291
TBR=tkent

Review URL: https://codereview.chromium.org/15658005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@151205 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs