Bug 886313: Make DisplayLine generate display items in a temporary collection, so we can apply text-overflow clipping without affecting earlier lines. r=roc
Bug 883987 - Don't allow BAD_STRING or BAD_URL tokens in @supports conditions. r=dbaron
No bug - Fix broken header guard in resource_manager.h. r=jesup

--HG--
extra : rebase_source : e7b72c7e7039f92a7bb5941df6958dc0abb5b9dd