[Security] Adding flaky test to TestExpectations

Test flakes because of an already identified problem.

Bug: 1040059
Change-Id: Id18c4111664a9c8adc186a8034085d7f84a265fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2027792
Auto-Submit: Arthur Hemery <ahemery@chromium.org>
Reviewed-by: Pâris Meuleman <pmeuleman@chromium.org>
Commit-Queue: Arthur Hemery <ahemery@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736790}

third_party/blink/web_tests/TestExpectations

@@ -6265,6 +6265,7 @@ crbug.com/1040059 external/wpt/html/cross-origin-opener-policy/iframe-popup-same
 crbug.com/1040059 external/wpt/html/cross-origin-opener-policy/iframe-popup-same-origin-to-same-origin.https.html [ Pass Crash ]
 crbug.com/1040059 external/wpt/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin.https.html [ Pass Crash ]
 crbug.com/1040059 external/wpt/html/cross-origin-opener-policy/iframe-popup-unsafe-none-to-same-origin.https.html [ Pass Crash ]
+crbug.com/1040059 external/wpt/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html [ Pass Crash ]
 
 # Broken in https://chromium-review.googlesource.com/c/chromium/src/+/1636716
 crbug.com/963183 http/tests/devtools/sources/debugger-breakpoints/disable-breakpoints.js [ Pass Failure Timeout ]