Add .exe to Windows binary paths in coverage script.

Windows can run an executable with just its base name, without the .exe
suffix, but when referring to the file itself the suffix is required.

Change-Id: I3bcec6976aa09795d6d300cbbfb24362b0d78ceb
Bug: 1090653
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2528940
Auto-Submit: Sajjad Mirza <sajjadm@chromium.org>
Reviewed-by: Yuke Liao <liaoyuke@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826068}
GitOrigin-RevId: 07f5233484fded957d0f78a3eef6f9d9b50baa95
1 file changed