Unify password-replacement character.

Changes the RenderText default password character to be a bullet on all
platforms instead of just Mac, as part of Harmony unification of UI.

This changes the ash LoginPasswordView from using the U+2219 bullet
operator glyph to the RenderText default bullet glyph.

Removes SetPasswordReplacementChar as it is no longer meaningfully used.

BUG=chromium:654115, chromium:770402

Change-Id: Ia323917a7dcf3a4b303d74d3488b3da7bf2d65ca
Reviewed-on: https://chromium-review.googlesource.com/693279
Commit-Queue: Peter Boström <pbos@chromium.org>
Reviewed-by: Wenzhao (Colin) Zang <wzang@chromium.org>
Reviewed-by: Jacob Dufault <jdufault@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505890}
7 files changed