Merge pull request #10915 from dominickuo/bug-882683

Bug 882683 - [music] check trak atom to filter iso base media files, r=mozsquib(cherry picked from commit 49349122b9f2fb7f3e8b04d46fc221d0168d6f4b)
Bug 891170 - [leo][System][calendar] In the date picker of the calendar app, the text in the Month field overlaps with the day