commit 492ec13aae28c20cf46236fe34952c7dcc888e0e
author Elad Alon <eladalon@chromium.org> Tue Nov 02 14:09:19 2021
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Nov 02 14:09:19 2021
tree b173164c6e9c92cc88c5713f8a0fa3d9bb2f3b35
parent f1f5fc5d57b1853a2ae8f6a922d0fef5d62af9e1

[Region Capture][cropTo][#8] Move crop-ID prod out of Element

Crop-ID production should be done in the browser process. Rationale:
1. It removes concerns of interference by a malicious application
   that could otherwise be forcing collisions of crop-ID.
2. When cropTo() is called, validation of that a crop-ID (a) exists
   and (b) belongs to the current browsing-context will ultimately
   be done in the browser process.

This CL performs the first step by moving the production of the crop-ID
out of Element and into MediaDevices (where produceCropId is exposed
to JS). The next CL(s?) will move the production further, to the
browser process, with MediaDevices holding a Resolver that can finally
fulfill its Promise when the browser process responds with a newly
minted crop-ID.

Drive-by: Make GetRegionCaptureCropId() return a const-ptr.

Bug: 1247761
Change-Id: Ie0aa515584a7ef312bee2fa740f0f318c9b13646
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3253017
Commit-Queue: Elad Alon <eladalon@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: Jordan Bayles <jophba@chromium.org>
Reviewed-by: Justin Novosad <junov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#937320}