Add buganizer component to DIR_METADATA

This helps predator figure out components.

Bug: chromium:341800538
Change-Id: Ia85cb85d0236e58bccd236dc5d93f946ebf15091
diff --git a/DIR_METADATA b/DIR_METADATA
index 66cc019..c3c3c4d 100644
--- a/DIR_METADATA
+++ b/DIR_METADATA
@@ -1,3 +1,6 @@
 monorail {
   component: "Blink>WebRTC"
 }
+buganizer_public: {
+  component_id: 1456096
+}