Bug 598252 - Disable test_play_twice.html on SeaMonkey. r=cpearce, a=DONTBUILD

[SeaMonkey Linux] Mochitest-1/5 fails test_play_twice.html | Expect at least one playing event (x2 with Ogg files)

content/media/test/Makefile.in

@@ -123,7 +123,6 @@ _TEST_FILES = \
 		test_paused_after_ended.html \
 		test_play_events.html \
 		test_play_events_2.html \
-		test_play_twice.html \
 		test_playback.html \
 		test_playback_errors.html \
 		test_preload_actions.html \
@@ -145,6 +144,13 @@ _TEST_FILES = \
 		test_audiowrite.html \
 		$(NULL)
 
+# Don't run in suite
+ifndef MOZ_SUITE
+_TEST_FILES += test_play_twice.html
+else
+$(warning test_play_twice.html is disabled pending investigation. Bug 598252)
+endif
+
 # These tests are disabled until we figure out random failures.
 # When these tests are fixed, we should also make them backend-independent.
 #		test_resume.html \