GitLab

Introduced the following changed to DataTransferPolicyController:
- Renamed IsReadAllowed to IsClipboardReadAllowed to be
used for clipboard copy/paste.
- Added IsDragDropAllowed to be used for drag-n-drop.
- The logic for IsDragDropAllowed will be changed later
upon confirmation from the PM & UX side.

Bug: 1139886
Change-Id: Ie0594e1d68abed98145106c2aa8afe480c9b3b27
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2595293Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Nikita Podguzov <nikitapodguzov@chromium.org>
Reviewed-by: Darwin Huang <huangdarwin@chromium.org>
Commit-Queue: Aya Elsayed <ayaelattar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#841156}