Add interfaces for most major Blimp net components.

blimp/net/blimp_message_dispatcher.h

-// 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.
-
-#ifndef BLIMP_NET_BLIMP_MESSAGE_DISPATCHER_H_
-#define BLIMP_NET_BLIMP_MESSAGE_DISPATCHER_H_
-
-#include <map>
-
-#include "base/containers/small_map.h"
-#include "base/threading/thread_checker.h"
-#include "blimp/common/proto/blimp_message.pb.h"
-#include "blimp/net/blimp_message_receiver.h"
-#include "blimp/net/blimp_net_export.h"
-
-namespace blimp {
-
-// Multiplexing BlimpMessageReceiver which routes BlimpMessages to other
-// receivers based on the messages' feature type.
-class BLIMP_NET_EXPORT BlimpMessageDispatcher : public BlimpMessageReceiver {
- public:
-  BlimpMessageDispatcher();
-  ~BlimpMessageDispatcher() override;
-
-  // Registers a message receiver which will process all messages
-  // with of the specified |type|.
-  // Only one handler may be added per type.
-  //
-  // |handler| must be valid when OnBlimpMessage() is called.
-  void AddReceiver(BlimpMessage::Type type, BlimpMessageReceiver* handler);
-
-  // BlimpMessageReceiver implementation.
-  net::Error OnBlimpMessage(const BlimpMessage& message) override;
-
- private:
-  base::SmallMap<std::map<BlimpMessage::Type, BlimpMessageReceiver*>>
-      feature_receiver_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpMessageDispatcher);
-};
-
-}  // namespace blimp
-
-#endif  // BLIMP_NET_BLIMP_MESSAGE_DISPATCHER_H_