Remove comment references to Chrome Frame.
Remove comment references to Chrome Frame.

It's useful to keep the tests against a zero-count
number of profiles because such conditions have been
known to happen during startup while things are still
being initialized.

BUG=331517

Review URL: https://codereview.chromium.org/1186953004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#334848}

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