Suppress leak in webkit_tests from 9d961d0a083fe4ebd8c200c31b87d75e4727958b

third_party/WebKit/LayoutTests/LeakExpectations

Index: third_party/WebKit/LayoutTests/LeakExpectations
diff --git a/third_party/WebKit/LayoutTests/LeakExpectations b/third_party/WebKit/LayoutTests/LeakExpectations
index a078c9fd34b53d39a557e3417e5a07feb488d1ae..75da46bcebe91045708006fbf889feef628f45bf 100644
--- a/third_party/WebKit/LayoutTests/LeakExpectations
+++ b/third_party/WebKit/LayoutTests/LeakExpectations
@@ -91,6 +91,15 @@ crbug.com/578297 [ Linux ] virtual/threaded/printing/webgl-oversized-printing.ht
 crbug.com/578297 [ Linux ] http/tests/media/media-source/mediasource-appendstream-quota-exceeded.html [ Slow ]
 
 # -----------------------------------------------------------------
+# Untriaged but known leaks of ActiveDOMObject (media).
+# -----------------------------------------------------------------
+
+crbug.com/627539 media/autoplay-muted-datasaver-off.html
+crbug.com/627539 media/autoplay-muted.html
+crbug.com/627539 media/autoplay-when-visible.html
+crbug.com/627539 media/video-autoplay-experiment-modes.html
+
+# -----------------------------------------------------------------
 # Leaks in imported/csswg-test/vendor-imports/mozilla/mozilla-central-reftests/*
 # -----------------------------------------------------------------
 crbug.com/594603 [ Linux ] imported/csswg-test/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-baseline-align-self-baseline-vert-001.html [ Leak ]