Unify the server and plugin versions of the generators

pkg/analysis_server/lib/src/channel/byte_stream_channel.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library channel.byte_stream;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/channel/channel.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 
 /**
  * Instances of the class [ByteStreamClientChannel] implement a
  * [ClientCommunicationChannel] that uses a stream and a sink (typically,
  * standard input and standard output) to communicate with servers.
  */
 class ByteStreamClientChannel implements ClientCommunicationChannel {
@@ skipping 142 matching lines @@
       // structure as a request.
       Request request = new Request.fromString(data);
       if (request == null) {
         sendResponse(new Response.invalidRequestFormat());
         return;
       }
       onRequest(request);
     });
   }
 }