Bug 1092979 - Add mochitest to ensure loadedmetada is emitted as early as possible. r=cajbir
Bug 1092996 - MSE/WebM: limit size read to what is available. r=kinetik
Bug 1093839 - remove unused declaration of SerializeJSValVariant. r=smaug
Bug 1093880 - Delay decoder initialization until data has been appended. r=cajbir