GitLab

BrowserDMToken contains a string and an enum. It should be able to be
copied and moved as a normal string. Explicitly declare copy and move
constructor and operator.

Also move the factory function declaration to the top of the class.

Bug: 1020296
Change-Id: I401812b07db1bd2801a4133cb67592f9ef4bc6d2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1906477Reviewed-by: Roger Tawa <rogerta@chromium.org>
Commit-Queue: Owen Min <zmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714515}