Update cq_client and add validate command to commit_queue binary

third_party/cq_client/test/cq_example.cfg

Index: third_party/cq_client/test/cq_example.cfg
diff --git a/third_party/cq_client/test/cq_example.cfg b/third_party/cq_client/test/cq_example.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..dc69acfcb06da8b7d087c4b30aabcef49af7639b
--- /dev/null
+++ b/third_party/cq_client/test/cq_example.cfg
@@ -0,0 +1,55 @@
+version: 1
+cq_name: "infra"
+cq_status_url: "https://chromium-cq-status.appspot.com"
+hide_ref_in_committed_msg: true
+commit_burst_delay: 600
+max_commit_burst: 10
+in_production: false
+git_repo_url: "http://github.com/infra/infra.git"
+target_ref: "refs/pending/heads/master"
+
+rietveld {
+  url: "https://codereview.chromium.org"
+  project_bases: "https://chromium.googlesource.com/infra/infra.git@master"
+}
+
+verifiers {
+  reviewer_lgtm: {
+     committer_list: "chromium"
+     max_wait_secs: 600
+     no_lgtm_msg: "LGTM is missing"
+  }
+
+  tree_status: {
+     tree_status_url: "https://infra-status.appspot.com"
+  }
+
+  try_job {
+    buckets {
+      name: "tryserver.blink"
+      builders { name: "android_blink_compile_dbg" }
+      builders { name: "android_blink_compile_rel" }
+      builders {
+        name: "win_blink_rel"
+        triggered: true
+      }
+    }
+    buckets {
+      name: "tryserver.chromium.linux"
+      builders {
+        name: "android_arm64_dbg_recipe"
+      }
+      builders {
+        name: "linux_chromium_rel_ng"
+        experiment_percentage: 0.1
+      }
+    }
+    buckets {
+      name: "tryserver.chromium.mac"
+      builders {
+        name: "ios_dbg_simulator_ninja"
+        experiment_percentage: 1.0
+      }
+    }
+  }
+}