Backout changeset 987810fab278 to re-enable test_contextmenu on linux, which should no longer be flaky following the landing of bug 682618

browser/base/content/test/Makefile.in

@@ -53,6 +53,8 @@ _TEST_FILES = \
 		feed_discovery.html \
 		test_bug395533.html \
 		bug395533-data.txt \
+		test_contextmenu.html \
+		subtst_contextmenu.html \
 		ctxmenu-image.png \
 		video.ogg \
 		test_offlineNotification.html \
@@ -75,16 +77,6 @@ _TEST_FILES = \
 		gZipOfflineChild.cacheManifest^headers^ \
 		$(NULL)
 
-ifeq (,$(filter gtk2,$(MOZ_WIDGET_TOOLKIT)))
-_TEST_FILES += \
-		test_contextmenu.html \
-		subtst_contextmenu.html \
-		$(NULL)
-
-else
-$(warning test_contextmenu.html disabled because of intermittent failures; bug 513558)
-endif
-
 # The following tests are disabled because they are unreliable:
 #   browser_bug423833.js is bug 428712
 #   browser_sanitize-download-history.js is bug 432425