[🧹✨] Replace base::ResetAndReturn with std::move() in //mojo

Bug: 841899
Change-Id: I027b1f662d140e3f0b53cf853688cb681765962e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1584892
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Ken Rockot <rockot@google.com>
Auto-Submit: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#654208}
3 files changed