GitLab

Changed ClipboardDataEndpoint to support virtual machines,
like Crostini, PluginVM, ARC++ as potential sources
or destinations of the clipboard data.

Bug: 1103217
Change-Id: I3ff721a8fbc685adfb5779b1edb579da4062ff24
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2315030
Commit-Queue: Aya Elsayed <ayaelattar@google.com>
Reviewed-by: Darwin Huang <huangdarwin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791647}