CQ: Add Chromium trybots as a 10% experiment.

infra/config/cq.cfg

Index: infra/config/cq.cfg
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 60e5dfc0af7548863b4ee78cf83f70d869bde2fe..c6095a39179a3a086cd5a93e3df9280bc1639c99 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -69,5 +69,41 @@ verifiers {
       builders { name: "win_x64_dbg" }
       builders { name: "win_x64_rel" }
     }
+    buckets {
+      name: "master.tryserver.chromium.android"
+      builders {
+        name: "android_compile_dbg"
+        experiment_percentage: 10
+      }
+      builders {
+        name: "linux_android_rel_ng"
+        experiment_percentage: 10
+      }
+    }
+    buckets {
+      name: "master.tryserver.chromium.linux"
+      builders {
+        name: "linux_chromium_rel_ng"
+        experiment_percentage: 10
+      }
+    }
+    buckets {
+      name: "master.tryserver.chromium.mac"
+      builders {
+        name: "ios-device"
+        experiment_percentage: 10
+      }
+      builders {
+        name: "mac_chromium_rel_ng"
+        experiment_percentage: 10
+      }
+    }
+    buckets {
+      name: "master.tryserver.chromium.win"
+      builders {
+        name: "win_chromium_rel_ng"
+        experiment_percentage: 10
+      }
+    }
   }
 }