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This CL converts base::Bind and base::Callback in //chrome/app to Once
or Repeating

Bug: 1007634
Change-Id: Ie12853158482a1d16e8074dc3eeaf98f1e610d48
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2067453Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Jun Cai <juncai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743312}