Make ProcessMap::Item non-copyable.

There's a contradictory comment about the copy constructor being
implicit, where, in reality, this was explicit. Since we
don't require Items to be copied, this CL makes Item non-copyable
instead, and provides move constructs.

Bug: None
Test: Internal only change, no visible changes expected.
Change-Id: I051a972181a3210d55745052c87bb58b8db7ef04
Reviewed-on: https://chromium-review.googlesource.com/c/1460124
Commit-Queue: Istiaque Ahmed <lazyboy@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630449}
1 file changed