Add ios-simulator-cronet to tryserver.chromium.mac

masters/master.tryserver.chromium.mac/slaves.cfg

Index: masters/master.tryserver.chromium.mac/slaves.cfg
diff --git a/masters/master.tryserver.chromium.mac/slaves.cfg b/masters/master.tryserver.chromium.mac/slaves.cfg
index 96bd0aa165772a469706147f4845979390e7e10a..3fe784507a8dbd9d71bf292459256708c41c8bea 100644
--- a/masters/master.tryserver.chromium.mac/slaves.cfg
+++ b/masters/master.tryserver.chromium.mac/slaves.cfg
@@ -217,10 +217,17 @@ def ios():
       'pool': 'ios_cq_rel',
     } for slave in cq_slaves_rel]
 
-  # TODO(lliabraa): Add test_slaves once we're actually running iOS tests on
-  # the bots.
+  extra_builders = [
+    {
+      'master': 'TryServerChromiumMac',
+      'builder': 'ios-simulator-cronet',
+      'hostname': 'vm667-m4',
+      'os': 'mac',
+      'version': '10.10',
+    },
+  ]
 
-  return compile_slaves_dbg + compile_slaves_rel
+  return compile_slaves_dbg + compile_slaves_rel + extra_builders
 
 
 slaves = mac() + ios()