Bug 683262 - window.crypto throws if MOZ_DISABLE_DOMCRYPTO is turned on - window.crypto patch r=jst

--HG--
rename : dom/interfaces/base/nsIDOMCrypto.idl => dom/interfaces/base/nsIDOMCryptoLegacy.idl
Bug 683262 - window.crypto throws if MOZ_DISABLE_DOMCRYPTO is turned on - revert nsIWindowCrypto patch r=jst
Bug 440046 - expose secure PRNG in the DOM (window.crypto.getRandomValues) r=cviecco r=bsmith