Mark http/tests/worklet/webexposed/global-interface-listing-paint-worklet.html flaky

Tbr: xidachen@chromium.org
Bug: 1059262
Change-Id: I80177cfb9b9c99ae419c350f670a9bb9d7c45b26
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2090209Reviewed-by: Kevin McNee <mcnee@chromium.org>
Reviewed-by: Xida Chen <xidachen@chromium.org>
Commit-Queue: Kevin McNee <mcnee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#747846}

third_party/blink/web_tests/TestExpectations

@@ -6764,3 +6764,5 @@ crbug.com/1058073 [ Retina ] accessibility/content-changed-notification-causes-c
 
 # Sheriff 2020-03-06
 crbug.com/1058203 [ Mac10.11 ] virtual/form-controls-refresh-disabled/fast/forms/autofocus-opera-008.html [ Pass Failure ]
+crbug.com/1059262 http/tests/worklet/webexposed/global-interface-listing-paint-worklet.html [ Pass Failure ]
+crbug.com/1059262 virtual/threaded/http/tests/worklet/webexposed/global-interface-listing-paint-worklet.html [ Pass Failure ]