extensions: Cleanup class/struct fwd declarations

extensions/browser/api/cast_channel/cast_socket.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 EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_SOCKET_H_
 #define EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_SOCKET_H_
 
 #include <stdint.h>
 
 #include <queue>
@@ skipping 11 matching lines @@
 #include "extensions/browser/api/cast_channel/cast_transport.h"
 #include "extensions/browser/api/cast_channel/logger_util.h"
 #include "extensions/common/api/cast_channel.h"
 #include "extensions/common/api/cast_channel/logging.pb.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/log/net_log_source.h"
 
 namespace net {
-class AddressList;
 class CertVerifier;
 class CTPolicyEnforcer;
 class CTVerifier;
 class NetLog;
 class SSLClientSocket;
 class StreamSocket;
 class TCPClientSocket;
 class TransportSecurityState;
 class X509Certificate;
 }
 
 namespace extensions {
 namespace api {
 namespace cast_channel {
 class CastMessage;
 class Logger;
 struct LastErrors;
-class MessageFramer;
 
 // Cast device capabilities.
 enum CastDeviceCapability {
   NONE = 0,
   VIDEO_OUT = 1 << 0,
   VIDEO_IN = 1 << 1,
   AUDIO_OUT = 1 << 2,
   AUDIO_IN = 1 << 3,
   DEV_MODE = 1 << 4
 };
@@ skipping 320 matching lines @@
   // information.
   AuthTransportDelegate* auth_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSocketImpl);
 };
 }  // namespace cast_channel
 }  // namespace api
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_SOCKET_H_