commit c5b8c8f36b6ba20283074870ef4bdea0e1f51970
author Austin Orion <auorion@microsoft.com> Fri May 06 22:53:30 2022
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Fri May 06 23:46:42 2022
tree 8ec1b1db5ad4abc5bb190228feb2ccb3bdf7a4a5
parent c48ad732d6eb69f14dd6d44f801d62997cef2c2f

Fix failing WGC tests on Win10

Several tests starting failing when run on trybots on Win10. This CL
fixes several issues that were uncovered.

Issue 1:
Capture failed to start because `get_Size` returned {0, 0}. This is a
known issue in the WGC API that occurs when there are multiple user
sessions on the same machine.
Solution:
Add a `GetSize` method to the `WgcCaptureSource` interface so we can
fallback to other methods if `get_Size` fails.

Issue 2:
The screen capture tests assume there will be displays attached and
fail if there aren't.
Solution:
Always run `IsWgcSupported` for the appropriate capture type.

Issue 3:
ASAN container-overflow in `GetTestWindowIdFromSourceList`
Solution:
Check the validity of the iterator before dereferencing.

Issue 4:
Occasionally, the call to `GetMessage` in the `CloseWindowMidCapture`
test would hang because there were no messages in the queue.
Solution:
Use `PeekMessage` instead which will return if there are no messages.

Bug: webrtc:14002
Change-Id: I69b2f765db87d34a41d6a1796cd5a81f4029be33
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/260202
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Austin Orion <auorion@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#36802}