This adds support for a new DesktopCapturer::Callback method
OnDisplayChanged that is sent at the start of a desktop capture
session and whenever the display geometry changes.
This cl adds the basic structure to call this api at the start
of the capture session. Currently Windows only.
A follow-up cl will add support to call this whenever the display
geometry changes.
Bug: webrtc:10122, chromium:915411
Change-Id: Ie7283be5992454180daab1a60f58a3b2efdfed56
Reviewed-on: https://webrtc-review.googlesource.com/c/114020
Commit-Queue: Gary Kacmarcik <garykac@chromium.org>
Reviewed-by: Brave Yao <braveyao@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26053}