Before this change the full screen application handler was failing to
detect PowerPoint going into presentation mode, resulting in the editor
window continuing to be shared rather than the intended behavior of
sharing the presentation itself.
Fix this by always looking for the PowerPoint full screen presentation
window, regardless of whether the editor window is still open. In
the current version of PowerPoint, the editor stays open during
presentation.
Bug: chromium:1231437
Change-Id: I1b21e263d25320cc236d127d22d4d64bb52fcbda
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269560
Reviewed-by: Mark Foltz <mfoltz@chromium.org>
Commit-Queue: Mark Foltz <mfoltz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#37632}
275e2683b3