Austin Orion 9fea310a62 Fix crash in WindowCapturerWinGdi::CaptureFrame.
A couple crashes have been reported in Chromium due to us dereferencing
|result.frame| which can be a nullptr.

This bug tracks the addition of new test cases which will help us
avoid issues like this in the future:
https://bugs.chromium.org/p/webrtc/issues/detail?id=12682

Bug: chromium:1199257
Change-Id: I720dd6ceb38938dc392f0924acf2cac287bfcffc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215340
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Commit-Queue: Austin Orion <auorion@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#33746}
2021-04-15 18:22:48 +00:00
..