Use GPU texture in desktop capture

This change adds a FrameTexture member in the DesktopFrame class, so
that WGC desktop capture can pass DXGIResource handles to supported
frame consumers to save CPU-GPU copies.

Bug: chromium:40929600
Change-Id: Ide143596272e4b72c099afa2d366f58e5ef835c4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/446781
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Markus Handell <handellm@webrtc.org>
Commit-Queue: Wang, Zhibo1 <zhibo1.wang@intel.com>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Cr-Commit-Position: refs/heads/main@{#47254}