Mojo: Add ErrorHandler to RemotePtr

mojo/public/bindings/error_handler.h

Index: mojo/public/bindings/error_handler.h
diff --git a/mojo/public/bindings/error_handler.h b/mojo/public/bindings/error_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..cfe18607d92c5b445c8ab93f63a2574936b7cf92
--- /dev/null
+++ b/mojo/public/bindings/error_handler.h
@@ -0,0 +1,18 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_PUBLIC_BINDINGS_ERROR_HANDLER_H_
+#define MOJO_PUBLIC_BINDINGS_ERROR_HANDLER_H_
+
+namespace mojo {
+
+class ErrorHandler {
+ public:
+  virtual ~ErrorHandler() {}
+  virtual void OnError() = 0;
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_BINDINGS_ERROR_HANDLER_H_