Remove all blimp network code.

blimp/net/blimp_connection.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_CONNECTION_H_
-#define BLIMP_NET_BLIMP_CONNECTION_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "blimp/net/blimp_net_export.h"
-#include "blimp/net/connection_error_observer.h"
-
-namespace blimp {
-
-class BlimpMessageProcessor;
-
-// Encapsulates the state and logic used to exchange BlimpMessages over
-// a network connection.
-class BLIMP_NET_EXPORT BlimpConnection : public ConnectionErrorObserver {
- public:
-  ~BlimpConnection() override;
-
-  // Adds |observer| to the connection's error observer list.
-  virtual void AddConnectionErrorObserver(ConnectionErrorObserver* observer);
-
-  // Removes |observer| from the connection's error observer list.
-  virtual void RemoveConnectionErrorObserver(ConnectionErrorObserver* observer);
-
-  // Sets the processor which will take incoming messages for this connection.
-  // Can be set multiple times, but previously set processors are discarded.
-  // Caller retains the ownership of |processor|.
-  virtual void SetIncomingMessageProcessor(
-      BlimpMessageProcessor* processor) = 0;
-
-  // Gets a processor for BrowserSession->BlimpConnection message routing.
-  virtual BlimpMessageProcessor* GetOutgoingMessageProcessor() = 0;
-
- protected:
-  class EndConnectionFilter;
-  friend class EndConnectionFilter;
-
-  BlimpConnection();
-
-  void AddEndConnectionProcessor(BlimpMessageProcessor* processor);
-
-  // ConnectionErrorObserver implementation.
-  void OnConnectionError(int error) override;
-
-  BlimpMessageProcessor* GetEndConnectionProcessor() const;
-
- private:
-  std::unique_ptr<EndConnectionFilter> end_connection_filter_;
-  base::ObserverList<ConnectionErrorObserver> error_observers_;
-  DISALLOW_COPY_AND_ASSIGN(BlimpConnection);
-};
-
-}  // namespace blimp
-
-#endif  // BLIMP_NET_BLIMP_CONNECTION_H_