Add buildbucket.config to webrtc host
diff --git a/buildbucket.config b/buildbucket.config
new file mode 100644
index 0000000..50158dd
--- /dev/null
+++ b/buildbucket.config
@@ -0,0 +1,3 @@
+[host]
+	git = webrtc.googlesource.com
+	gerrit = webrtc-review.googlesource.com