Remote Assistance on Chrome OS Part II - Native Messaging renaming

chrome/browser/extensions/api/messaging/native_messaging_channel.h

+// Copyright 2013 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 CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_
+#define CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_
+
+#include "base/callback.h"
+
+namespace base {
+class DictionaryValue;
+class Value;
+}  // namespace base
+
+namespace extensions {
+
+// Defines an interface to read messages and send responses between the native
+// process and chrome.
+class NativeMessagingChannel {
+ public:
+  // Used to send a message to the other endpoint.
+  typedef base::Callback<void(scoped_ptr<base::DictionaryValue> message)>
+      SendMessageCallback;
+
+  virtual ~NativeMessagingChannel() {}
+
+  // Starts reading and processing messages.
+  // |received_message| is called whenever a message is received from the other
+  // endpoint.
+  // |quit_closure| is called by the channel to shut down the native process
+  // whenever it encounter failures in sending or receiving a message.
+  virtual void Start(const SendMessageCallback& received_message,
+                     const base::Closure& quit_closure) = 0;
+
+  // Sends a message to the other endpoint.
+  virtual void SendMessage(scoped_ptr<base::DictionaryValue> message) = 0;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_