gl/cocoa: Only use convertRectToBacking on OSX >= 10.7
authorSebastian Dröge <sebastian@centricular.com>
Sun, 16 Nov 2014 10:00:14 +0000 (11:00 +0100)
committerTim-Philipp Müller <tim@centricular.com>
Sat, 9 Dec 2017 19:31:50 +0000 (19:31 +0000)
commit8f5faa387233a595cabdabc8dcf78efa14a16da8
treee2e9ca12033dfa78adb2b2b28bfca0f345957164
parentd70f6a9b5e97e17482356bb22dafbf172815bb3d
gl/cocoa: Only use convertRectToBacking on OSX >= 10.7

It does not exist before and older versions also don't have
support for HiDPI displays anyway.

https://bugzilla.gnome.org/show_bug.cgi?id=740201
gst-libs/gst/gl/cocoa/gstglwindow_cocoa.m