Suppress form validation test failures by a content shell change.
Suppress form validation test failures by a content shell change.

BUG=249237
TBR=pdr@chromium.org

Review URL: https://codereview.chromium.org/17042002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@152409 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