Disable browser_responsiveui.js and browser_responsiveuiaddcustompreset.js on OS X for intermittent failures (bug 798772, bug 798775); r=jwalker

browser/devtools/responsivedesign/test/Makefile.in

@@ -45,15 +45,23 @@ include $(DEPTH)/config/autoconf.mk
 include $(topsrcdir)/config/rules.mk
 
 _BROWSER_FILES = \
-		browser_responsiveui.js \
 		browser_responsiveruleview.js \
 		browser_responsive_cmd.js \
 		browser_responsivecomputedview.js \
-		browser_responsiveuiaddcustompreset.js \
 		head.js \
 		helpers.js \
 		$(NULL)
 
+# Disabled on Mac for frequent intermittent failures
+ifneq ($(OS_ARCH), Darwin)
+_BROWSER_FILES += \
+		browser_responsiveui.js \
+		browser_responsiveuiaddcustompreset.js \
+	$(NULL)
+else
+$(warning browser_responsiveui.js is disabled on OS X for intermittent failures. Bug 798772) \
+$(warning browser_responsiveuiaddcustompreset.js is disabled on OS X for intermittent failures. Bugs 798775, 798777)
+endif
 
 libs::	$(_BROWSER_FILES)
 	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/browser/$(relativesrcdir)