Bug 823041 - Destroy the pres shell before the document.  r=roc
Bug 827654.  Actually QI to interfaces we implement in nsCancelableRunnable.  r=smaug
Bug 826226 - update harfbuzz to release 0.9.10. r=jdaggett
Bug 814765 - Include late writes in the Telemetry ping. r=vladan.

--HG--
extra : rebase_source : d3863b0ef7f4f77411042c374227d9f41adda929
Bug 827733 - JavaScript Error: "oldIcc is null". r=allstars.chh