Gardening: virtual/threaded/animations/opacity-transform-animation.html flaky on Linux ASAN

BUG=248938
TEST=
TBR=zmo@chromium.org

Review URL: https://codereview.chromium.org/203693005

git-svn-id: svn://svn.chromium.org/blink/trunk@169484 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/ASANExpectations

@@ -80,3 +80,4 @@ crbug.com/290411 [ Linux ] fast/text/sub-pixel/text-scaling-pixel.html [ Failure
 crbug.com/333901 [ Linux ] virtual/legacy-animations-engine/animations/timing-model.html [ Failure Pass ]
 crbug.com/339778 [ Linux ] fast/dom/timer-throttling-hidden-page.html [ Failure Pass ]
 crbug.com/353746 [ Linux ] virtual/android/fullscreen/video-specified-size.html [ ImageOnlyFailure Pass ]
+crbug.com/248938 [ Linux ] virtual/threaded/animations/opacity-transform-animation.html [ Timeout Pass ]
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