Add glue between the client and engine for Blimp

blimp/net/null_blimp_message_processor.cc

Index: blimp/net/null_blimp_message_processor.cc
diff --git a/blimp/net/null_blimp_message_processor.cc b/blimp/net/null_blimp_message_processor.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4ae26a3dba252184d4ec4f33b319322c4a7dc8b7
--- /dev/null
+++ b/blimp/net/null_blimp_message_processor.cc
@@ -0,0 +1,18 @@
+// Copyright 2015 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.
+
+#include "blimp/net/null_blimp_message_processor.h"
+
+namespace blimp {
+
+NullBlimpMessageProcessor::~NullBlimpMessageProcessor() {}
+
+void NullBlimpMessageProcessor::ProcessMessage(
+    scoped_ptr<BlimpMessage> message,
+    const net::CompletionCallback& callback) {
+  if (!callback.is_null())
+    callback.Run(net::OK);
+}
+
+}  // namespace blimp