Bug 1316305 - Intermittent dom/security/test/csp/test_upgrade_insecure.html. disabled on osx. r=gbrown

MozReview-Commit-ID: FyX1wqxhyT7

dom/security/test/csp/mochitest.ini

@@ -249,7 +249,7 @@ skip-if = toolkit == 'android' # Times out, not sure why (bug 1008445)
 [test_dual_header.html]
 [test_upgrade_insecure.html]
 # no ssl support as well as websocket tests do not work (see test_websocket.html)
-skip-if = toolkit == 'android'
+skip-if = toolkit == 'android' || (os=="mac" && !debug) # osx: bug 1316305
 [test_upgrade_insecure_reporting.html]
 skip-if = toolkit == 'android'
 [test_upgrade_insecure_referrer.html]