Bug 846769 - Annotate test_bug495300.html and test_videocontrols.html as intermittently asserting. a=test-only
Bug 874425 - Ensure that durationMs >= 0. r=yoric, a=test-only
Bug 783589 - Fix for intermittent test_popup-navigates-children.html, test_sibling-matching-parent.html failure. r=jlebar, a=test-only