Update Gaia API documents for #3926f87b0b1e16ad004b6174013e8ec4cb38211b
    Merge pull request #14075 from dominickuo/bug-911108-new

Bug 911108 - [music] change the hash and option to mix page when the player is reset by the storages, r=huchengtw-moz(cherry picked from commit 2758561ca39d2d2c30a4425f087515284b6c095f)