None of these methods are called anymore.

BUG=475320

Change-Id: I2f21a326069cf3e65af179f4e61fa15093b73b07
Reviewed-on: https://chromium-review.googlesource.com/423122Reviewed-by: Katie Thomas <katthomas@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>