Add recipe for testing recipe simulation.

masters/master.chromium.tools.build/builders.pyl

Index: masters/master.chromium.tools.build/builders.pyl
diff --git a/masters/master.chromium.tools.build/builders.pyl b/masters/master.chromium.tools.build/builders.pyl
index 9a41f541142e86091632d8f32063a5b48118b8d1..cd4b32c6f7c60dd32b4406e4cf5b351dbeb27ed1 100644
--- a/masters/master.chromium.tools.build/builders.pyl
+++ b/masters/master.chromium.tools.build/builders.pyl
@@ -34,6 +34,27 @@
       "scheduler": "build",
       "slave_pools": ["win7_64"],
     },
+    "recipe-simulation_mac": {
+      "auto_reboot": False,
+      "category": "continuous",
+      "recipe": "infra/recipe_simulation",
+      "scheduler": "build",
+      "slave_pools": ["mac10.10"],
+    },
+    "recipe-simulation_trusty64": {
+      "auto_reboot": False,
+      "category": "continuous",
+      "recipe": "infra/recipe_simulation",
+      "scheduler": "build",
+      "slave_pools": ["trusty_64"],
+    },
+    "recipe-simulation_win64": {
+      "auto_reboot": False,
+      "category": "continuous",
+      "recipe": "infra/recipe_simulation",
+      "scheduler": "build",
+      "slave_pools": ["win7_64"],
+    },
   },
 
   "schedulers": {