Disable NaCl's run_ppapi_crash_browser_test on Mac.

chrome/test/nacl_test_injection/buildbot_nacl_integration.py

Index: chrome/test/nacl_test_injection/buildbot_nacl_integration.py
diff --git a/chrome/test/nacl_test_injection/buildbot_nacl_integration.py b/chrome/test/nacl_test_injection/buildbot_nacl_integration.py
index 5531bc026f467949c776df239265357175e547d5..8bca104a952fe7b1f18c9d23ecf5d2d52b85702c 100755
--- a/chrome/test/nacl_test_injection/buildbot_nacl_integration.py
+++ b/chrome/test/nacl_test_injection/buildbot_nacl_integration.py
@@ -58,6 +58,11 @@ def Main(args):
         'run_fault_pq_dep_pm_nameservice_chrome_browser_test',
         ])
 
+    if sys.platform == 'darwin':
+      # TODO(mseaborn) fix
+      # http://code.google.com/p/nativeclient/issues/detail?id=1835
+      tests_to_disable.append('run_ppapi_crash_browser_test')
+
   if sys.platform in ('win32', 'cygwin'):
     tests_to_disable.append('run_ppapi_ppp_input_event_browser_test')