Fix a documentation error for LiveSuite.onComplete.
Fix a documentation error for LiveSuite.onComplete.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1984143003 .

iglherme/Guttiest,grouma/test,kevmoo/test,grouma/test,iglherme/Guttiest,kevmoo/test,kevmoo/test,iglherme/Guttiest,grouma/test