commit c58a767a23ab620a78fd92aa9d869881ba8afd25
author Palak Agarwal <agpalak@google.com> Fri Jan 31 12:56:30 2025
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Fri Jan 31 14:36:04 2025
tree 9aa06ca23f8e9f91b6fe8c6784056c62c2471865
parent 18b94b517d808bfaf8ba1559c45de61b403ff52a

Reland "Get DeviceScaleFactor for the captured monitor/screen"

This is a reland of commit e20fbb00d0e0219b710da24664e81a10b12c703a
which failed due to CHECK failing on monitor_id in
DxgiDuplicatorController::GetDeviceScaleFactor(). This has now been
fixed in this CL by removing the check for greater than 0 and instead
returning std::nullopt.

Original change's description:
> Get DeviceScaleFactor for the captured monitor/screen
>
> Accesses DeviceScaleFactor using the windows API
> GetScaleFactorForMonitor and adds it to the DesktopFrame. In a follow-up
> CL, this value is propagated to
> DesktopCaptureDevice::Core::OnCaptureResult where it is added to the
> frame metadata.
>
> In a follow-up CL, add RegisterScaleChangeEvent to get notified whenever
> the device scale factor changes.
>
> Design doc: go/expose-captured-surface-resolution
>
> Bug: chromium:383946052
> Change-Id: I363af33c569419d95ddf31a0cc2f9cecf6fb0c7b
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/374344
> Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
> Reviewed-by: Mark Foltz <mfoltz@chromium.org>
> Commit-Queue: Palak Agarwal <agpalak@google.com>
> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#43827}

Bug: chromium:383946052
Change-Id: Iffcc889b9a560695302f71623e3e929ecb2489fb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/376061
Commit-Queue: Palak Agarwal <agpalak@google.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43832}