Set up infra config folder with CQ configuration.

infra/config/OWNERS

+geofflang@chromium.org
+phajdan.jr@chromium.org
+sergiyb@chromium.org
+tandrii@chromium.org

infra/config/README.md

+This directory contains configuration files for chrome infrastructure services.

infra/config/cq.cfg

+# See http://luci-config.appspot.com/schemas/projects/refs:cq.cfg for the
+# documentation of this file format.
+version: 1
+cq_name: "angle"
+cq_status_url: "https://chromium-cq-status.appspot.com"
+git_repo_url: "https://chromium.googlesource.com/angle/angle"
+# TODO(tandrii): remove this once fully in production.
+in_production: true
+gerrit {
+  # TODO(tandrii): this actually isn't used, but is required for now.
+  cq_verified_label: "Commit-Queue-Verified"
+}
+verifiers {
+  try_job {
+    buckets {
+      name: "tryserver.chromium.angle"
+      builders { name: "linux_angle_rel_ng" }
+      builders { name: "linux_angle_dbg_ng" }
+      builders { name: "mac_angle_rel_ng" }
+      builders { name: "mac_angle_dbg_ng" }
+      builders { name: "win_angle_rel_ng" }
+      builders { name: "win_angle_dbg_ng" }
+      builders { name: "win_angle_x64_rel_ng" }
+      builders { name: "win_angle_x64_dbg_ng" }
+    }
+  }
+}