GitLab

- Added source for drag-and-drop data the
same as clipboard data to be able to apply
the rules of data leak prevention policy.

Bug: 1139886
Change-Id: I321c9ab7527cb1b16561973b1e57420e5a4b9e36
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2489634Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Darwin Huang <huangdarwin@chromium.org>
Commit-Queue: Aya Elsayed <ayaelattar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822163}