[cast_channel] Clean up CastSocketImpl ctor parameters

components/cast_channel/cast_transport.h

 // 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 COMPONENTS_CAST_CHANNEL_CAST_TRANSPORT_H_
 #define COMPONENTS_CAST_CHANNEL_CAST_TRANSPORT_H_
 
 #include <queue>
 #include <string>
 
@@ skipping 53 matching lines @@
   // Changes the delegate for processing read events. Pending reads remain
   // in-flight.
   // Ownership of the pointee of |delegate| is assumed by the transport.
   // Prior delegates are deleted automatically.
   virtual void SetReadDelegate(std::unique_ptr<Delegate> delegate) = 0;
 };
 
 // Manager class for reading and writing messages to/from a socket.
 class CastTransportImpl : public CastTransport {
  public:
-  using ChannelAuthType = ::cast_channel::ChannelAuthType;
   using ChannelError = ::cast_channel::ChannelError;
 
   // Adds a CastMessage read/write layer to a socket.
   // Message read events are propagated to the owner via |read_delegate|.
   // |vlog_prefix| sets the prefix used for all VLOGged output.
   // |socket| and |logger| must all out-live the
   // CastTransportImpl instance.
   // |read_delegate| is owned by this CastTransportImpl object.
   CastTransportImpl(net::Socket* socket,
                     int channel_id,
                     const net::IPEndPoint& ip_endpoint_,
-                    ChannelAuthType channel_auth_,
                     scoped_refptr<Logger> logger);
 
   ~CastTransportImpl() override;
 
   // CastTransport interface.
   void SendMessage(const CastMessage& message,
                    const net::CompletionCallback& callback) override;
   void Start() override;
   void SetReadDelegate(std::unique_ptr<Delegate> delegate) override;
 
@@ skipping 80 matching lines @@
   // The last error encountered by the channel.
   ChannelError error_state_;
 
   // Connection metadata for logging purposes.
   // Socket ID assigned by ApiResourceManager.
   int channel_id_;
 
   // IP address of the remote end.
   const net::IPEndPoint ip_endpoint_;
 
-  // Authentication level for the connection.
-  ChannelAuthType channel_auth_;
-
   // Accumulates details of events and errors, for debugging purposes.
   scoped_refptr<Logger> logger_;
 
   SEQUENCE_CHECKER(sequence_checker_);
 
   DISALLOW_COPY_AND_ASSIGN(CastTransportImpl);
 };
 }  // namespace cast_channel
 
 #endif  // COMPONENTS_CAST_CHANNEL_CAST_TRANSPORT_H_