Mojo: Enable mojo_shell_tests on Mac (on the bots).

R=sky@chromium.org

Review URL: https://codereview.chromium.org/392253004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283561 0039d316-1c4b-4281-b951-d872f2087c98

testing/buildbot/chromium.mac.json

@@ -48,6 +48,7 @@
       "mojo_public_system_unittests",
       "mojo_public_utility_unittests",
       "mojo_service_manager_unittests",
+      "mojo_shell_tests",
       "mojo_system_unittests",
       "sandbox_mac_unittests",
       {"test": "browser_tests", "shard_index": 2, "total_shards": 3}
@@ -102,6 +103,7 @@
       "mojo_public_system_unittests",
       "mojo_public_utility_unittests",
       "mojo_service_manager_unittests",
+      "mojo_shell_tests",
       "mojo_system_unittests",
       "sandbox_mac_unittests",
       {"test": "browser_tests", "shard_index": 2, "total_shards": 3}
@@ -161,6 +163,7 @@
       "mojo_public_system_unittests",
       "mojo_public_utility_unittests",
       "mojo_service_manager_unittests",
+      "mojo_shell_tests",
       "mojo_system_unittests",
       {"test": "browser_tests", "shard_index": 3, "total_shards": 4}
     ]
@@ -219,6 +222,7 @@
       "mojo_public_system_unittests",
       "mojo_public_utility_unittests",
       "mojo_service_manager_unittests",
+      "mojo_shell_tests",
       "mojo_system_unittests",
       {"test": "browser_tests", "shard_index": 3, "total_shards": 4}
     ]