Bug 857645.  Make it possible to copy-initialize an nsCOMPtr<T> from an already_AddRefed<U> as long as U inherits from T.  r=ehsan
Bug 850090.  Don't assert things about our stylesheets during unlink, since our state can be kinda inconsistent then.  r=smaug
Bug 369180: override nsIAuthPromptProvider implementation on search suggestion callbacks to avoid proxy authentication dialog popping up while entering text in the search bar, r=mayhemer

--HG--
extra : transplant_source : %22%9B%3E%7C%F9%F9.%E5%E8%7F%ADy%B1%07%27%17%09%D1o%FE
Backout 8a6cacf047a1 (bug 833795) to fix bug 856083
Back out 8396d7543197 (bug 857645) for build bustage
CLOSED TREE