ChannelMojo: Replace hand written messsages with mojo.

ipc/mojo/client_channel.mojom

Index: ipc/mojo/client_channel.mojom
diff --git a/ipc/mojo/client_channel.mojom b/ipc/mojo/client_channel.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..aab8d8ac99d91cd1db85fd27a01826266d2e36ed
--- /dev/null
+++ b/ipc/mojo/client_channel.mojom
@@ -0,0 +1,16 @@
+// 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.
+
+module IPC {
+
+interface ClientChannelClient {

[viettrungluu, 2014/10/24 01:23:46]

Note that order of interface declaration is unimportant, so it's probably more
natural to declare the client interface after the other one.

[Hajime Morrita, 2014/10/24 17:35:11]

Acknowledged.

+  ClientChannelWasInitialized(int32 peer_pid);

[viettrungluu, 2014/10/24 01:23:46]

Is this only sent in response to InitClientChannel()? Would a reply message be
better?

[Hajime Morrita, 2014/10/24 17:35:11]

Oh right. Done.

+};
+
+[Client=ClientChannelClient]
+interface ClientChannel {
+  InitClientChannel(handle<message_pipe>? pipe, int32 peer_pid);
+};
+
+}