Tentatively stop considering video_loop_base.html is crashing

The test was originally crashing with DCHECKs enabled, but it no longer
seems to do that according to the flakiness dashboard.

TBR=foolip

Bug: 762017
Change-Id: I1a67b94ff5fef93906ae471d49341d59d51fcb78
Reviewed-on: https://chromium-review.googlesource.com/1213165Reviewed-by: Raphael Kubo da Costa (CET) <raphael.kubo.da.costa@intel.com>
Commit-Queue: Raphael Kubo da Costa (CET) <raphael.kubo.da.costa@intel.com>
Cr-Commit-Position: refs/heads/master@{#589506}

third_party/WebKit/LayoutTests/TestExpectations

@@ -3707,7 +3707,6 @@ crbug.com/809935 external/wpt/css/css-fonts/variations/font-style-interpolation.
 crbug.com/626703 external/wpt/css/css-ui/text-overflow-011.html [ Failure Crash Pass ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/margin-collapsing-quirks/multicol-quirks-mode.html [ Pass Crash ]
 crbug.com/626703 external/wpt/html/rendering/non-replaced-elements/margin-collapsing-quirks/multicol-standards-mode.html [ Pass Crash Failure ]
-crbug.com/762017 external/wpt/html/semantics/embedded-content/media-elements/video_loop_base.html [ Pass Crash ]
 
 # Worker/SharedWorker are not exposed in WorkerGlobalScope.
 crbug.com/850662 external/wpt/workers/baseurl/alpha/worker-in-worker.html [ Failure ]