Fix typo in tests, adding missing expectations.

This change

 * Fixes a typo in a test.
 * Adds missing expectation files. These tests are written in
   W3C suite style so expectations isn't mandatory, but
   w.r.t --reset-results writes the expectations anyway
   so it doesn't make sense to omit these files.

BUG=none
TEST=none
R=adamk

Review URL: https://codereview.chromium.org/243933002

git-svn-id: svn://svn.chromium.org/blink/trunk@171990 bbb929c8-8fbe-4397-9dbb-9b2b20218538