Bug 1566128 - Add bug component for picture-in-picture wpt; r=jaws

Differential Revision: https://phabricator.services.mozilla.com/D38102

--HG--
extra : moz-landing-system : lando

testing/web-platform/moz.build

@@ -436,6 +436,9 @@ with Files("tests/payment-request/**"):
 with Files("tests/performance-timeline/**"):
     BUG_COMPONENT = ("Core", "Performance")
 
+with Files("tests/picture-in-picture/**"):
+    BUG_COMPONENT = ("Toolkit", "Video/Audio Controls")
+
 with Files("tests/pointerevents/**"):
     BUG_COMPONENT = ("Core", "DOM: Events")