Separate out IPC::Message::Sender and channel::Listener into a separate class.

ipc/ipc_sender.cc

Index: ipc/ipc_sender.cc
diff --git a/ipc/ipc_sender.cc b/ipc/ipc_sender.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e34907cd21e159e4de0bbfcff670d84cc4e22830
--- /dev/null
+++ b/ipc/ipc_sender.cc
@@ -0,0 +1,12 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[jam, 2012/06/11 01:56:29]

ditto

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ipc/ipc_sender.h"
+
+namespace IPC {
+
+Sender::~Sender() {
+}
+
+}  // namespace IPC