There is a AV where GDI capturer sends empty frame to the
blank detector. It is fine operation from the GDI capturer
to pass an empty to the next handler. So, blank capturer
filter it and send it as blank frame to next handler.
Bug: webrtc:14265
Change-Id: Ifc90a210703e14fa6d0dc7fb2ae2942ae4e8125f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268444
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Alexander Cooper <alcooper@chromium.org>
Cr-Commit-Position: refs/heads/main@{#37513}
b5d77a0c84