GitLab

This CL converts base::Callback (and corresponding calls to base::Bind)
to either base::OnceCallback or base::RepeatingCallback in
chrome/browser/media. In general a base::OnceCallback is preferred since
that's a stronger API guarantee, so that's been done where safe.

Bug: 1007635
Change-Id: Ie3113c61db1ae43ce2e31c262f023d714f42dfc0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321003
Commit-Queue: Will Cassella <cassew@google.com>
Reviewed-by: Frank Liberato <liberato@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792380}