Bug 842772 - Don't test for mask-type when the pref is disabled. r=dbaron a=test-only
Bug 842829 - Fix test_condition_text.html to parse the style sheet after the pref is set. r=dbaron a=test-only
Bug 842389 - return the right thing from ProgressiveUpdate; r=BenWa,cwiiis a=lsblakk