The definitions of these methods are identical to the methods they're
overriding, so they have no effect.
This also makes it explicit that NetworkDelegateImpl is non-copyable and
non-movable.
Change-Id: I43c4d2b91044e9e546445749edf333f6d2155e7d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2941302
Auto-Submit: Chris Fredrickson <cfredric@chromium.org>
Reviewed-by: Eric Orth <ericorth@chromium.org>
Commit-Queue: Chris Fredrickson <cfredric@chromium.org>
Cr-Commit-Position: refs/heads/master@{#889467}