test_can_play_type_mpeg.html now expects mp4 to work if media.fragmented-mp4.exposed is true, but enabling the pref doesn't result in playback support on Mac OS X 10.6, where the VideoToolbox platform api we use isn't available. So the test works on 10.8 but not 10.6.

Add a version check like we use on windows.

Comment on attachment 8478019 [details] [diff] [review] Account for mp4 playback failing on MacOS X 10.6 Review of attachment 8478019 [details] [diff] [review]: ----------------------------------------------------------------- ::: content/media/test/test_can_play_type_mpeg.html @@ +55,4 @@ > var haveMp4 = (getPref("media.windows-media-foundation.enabled") && IsWindowsVistaOrLater()) || > getPref("media.omx.enabled") || > getPref("media.gstreamer.enabled") || > + getPref("media.fragmented-mp4.exposed") && Sorry, I bitrot you when I landed bug 1057880 on m-i earlier today. How about we create a IsMP4ReaderAvailable() function which encapsulates the checks you and I need to do into a single function?

Rebase on top of the changes in bug 1057880. - Move fmp4-related checks to their own function. - Remove IsWindowsXPOrEarlier since it's just the inverse of IsWindowsVistaOrLater. - Handle Mac regex not matching at all. - Improve Windows regex.