Update Gaia API documents for #9aa0abe069a077d8cd645daf3de6c84cdec63f31
    Merge pull request #14385 from gasolin/issue-935828

Bug 935828 - [hamachi][fugu]Volume warning in FM app do not disappear af..., r=alive
(cherry picked from commit 22f7ea4e7fa50d16834b838f3c356ca86810db24)