Update test expectations of flaky layout_test

This CL updates the test expecations for
external/wpt/websockets/opening-handshake/003.html?wss which is supposed
to fail but also times out on mac_chromium_rel_ng.

TBR=jeffcarp@chromium.org

Bug: 800509,709227
Change-Id: Ia74690f6d53c63ff50312aed0f81c3a08f6d216b
Reviewed-on: https://chromium-review.googlesource.com/860360Reviewed-by: Camille Lamy <clamy@chromium.org>
Commit-Queue: Camille Lamy <clamy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#528361}

third_party/WebKit/LayoutTests/TestExpectations

@@ -2686,7 +2686,6 @@ crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/009.html?wss
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/011.html?wss [ Failure ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/012.html?wss [ Failure ]
 crbug.com/709227 external/wpt/websockets/opening-handshake/002.html?wss [ Failure ]
-crbug.com/709227 external/wpt/websockets/opening-handshake/003.html?wss [ Failure ]
 crbug.com/709227 external/wpt/websockets/opening-handshake/005.html [ Failure ]
 crbug.com/709227 external/wpt/websockets/unload-a-document/002.html [ Failure ]
 crbug.com/709227 external/wpt/websockets/unload-a-document/002.html?wss [ Failure ]
@@ -2709,6 +2708,7 @@ crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/006.html?wss
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/010.html?wss [ Timeout ]
 crbug.com/709227 external/wpt/websockets/keeping-connection-open/001.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/websockets/opening-handshake/003-sets-origin.worker.html [ Timeout ]
+crbug.com/709227 external/wpt/websockets/opening-handshake/003.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/websockets/opening-handshake/005.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/workers/nested_worker.worker.html [ Timeout ]