GitLab

After this change, clipboard history will support custom data.
Follow up changes will make it look pretty.

Bug: 1104352
Change-Id: I018494a117f0d4d909500fd0be12e1ceb803ebb6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2315922
Commit-Queue: David Black <dmblack@google.com>
Reviewed-by: Darwin Huang <huangdarwin@chromium.org>
Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791560}