Bug 599087: Re-enable plugin crash tests on Mac OS X. a=test

modules/plugin/test/mochitest/Makefile.in

@@ -113,8 +113,6 @@ _MOCHICHROME_FILES = \
 
 # Temporarily disable the tests on Linux, see bug 573290 and bug 583591.
 ifneq ($(OS_ARCH),Linux)
-# Temporarily disable the tests on Mac OS X, see bug 599087.
-ifneq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 ifdef MOZ_CRASHREPORTER
 _MOCHICHROME_FILES += \
   test_crash_notify.xul \
@@ -123,7 +121,6 @@ _MOCHICHROME_FILES += \
   $(NULL)
 endif
 endif
-endif
 
 ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 _MOCHICHROME_FILES += \