Mojo: Add NotifyBadMessage API

mojo/public/cpp/bindings/lib/router.h

Index: mojo/public/cpp/bindings/lib/router.h
diff --git a/mojo/public/cpp/bindings/lib/router.h b/mojo/public/cpp/bindings/lib/router.h
index 2f5e8e2a971366c0ddc04895635be9d0565b29e5..fc15f65622a7fc355f0edc101e97560045086180 100644
--- a/mojo/public/cpp/bindings/lib/router.h
+++ b/mojo/public/cpp/bindings/lib/router.h
@@ -39,6 +39,12 @@ class Router : public MessageReceiverWithResponder {
     incoming_receiver_ = receiver;
   }
 
+  // Sets the interface name for this Router. Used only for debugging.
+  void set_interface_name(const std::string& name) {
+    DCHECK(thread_checker_.CalledOnValidThread());
+    connector_.set_interface_name(name);
+  }
+
   // Sets the error handler to receive notifications when an error is
   // encountered while reading from the pipe or waiting to read from the pipe.
   void set_connection_error_handler(const Closure& error_handler) {