Introduce ChannelMojo

ipc/ipc_channel_builder.h

Index: ipc/ipc_channel_builder.h
diff --git a/ipc/ipc_channel_builder.h b/ipc/ipc_channel_builder.h
new file mode 100644
index 0000000000000000000000000000000000000000..0dc72ea9aad2c2fa1e669c545483c5bbd7b11f99
--- /dev/null
+++ b/ipc/ipc_channel_builder.h
@@ -0,0 +1,33 @@
+// 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 IPC_IPC_CHANNEL_BUILDER_H_
+#define IPC_IPC_CHANNEL_BUILDER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/memory/scoped_ptr.h"
+#include "ipc/ipc_channel.h"
+
+namespace IPC {
+
+// Encapsulates how a Channel is created. A ChannelBuilder can be
+// passed to the contstructor of ChannelProxy or SyncChannel to tell them

[darin (slow to review), 2014/07/15 23:32:49]

nit: contstructor -> constructor

[Hajime Morrita, 2014/07/16 19:17:56]

Oops:( Done.

+// how to create underlying channel.
+class ChannelBuilder {
+ public:
+  // Creates a builder for "native" channel built through
+  // IPC::Channel::Create().
+  static scoped_ptr<ChannelBuilder> CreatePlatformBuilder(

[darin (slow to review), 2014/07/15 23:32:49]

nit: Perhaps this function should just be named "Create". It'll be called as
"ChannelBuilder::Create". I'm not sure that adding the words "platform" and
"builder" help that much. "builder" is redundant, and I think "platform" just
implies that you are getting a platform-specific builder.

[Hajime Morrita, 2014/07/16 19:17:56]

Makes sense. Renamed.

+      const ChannelHandle& handle, Channel::Mode mode);
+
+  virtual ~ChannelBuilder() { }
+  virtual std::string GetName() const = 0;
+  virtual scoped_ptr<Channel> BuildChannel(Listener* listener) = 0;
+};
+
+}  // namespace IPC
+
+#endif  // IPC_IPC_CHANNEL_BUILDER_H_