Adds TestExpectation temporarily to add handling AX time role.
Adds TestExpectation temporarily to add handling AX time role.

It will be enabled after landing the CL to handle AX time role
at chromium side.

BUG=480861
NOTRY=true

Review URL: https://codereview.chromium.org/1148103002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@195622 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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