Add more performance tags.

pkg/analysis_server/lib/src/channel/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;
 
 import 'dart:async';
 import 'dart:convert';
 
 import 'package:analysis_server/src/protocol.dart';
-import 'package:analyzer/src/util/utilities_timing.dart';
 
 /**
  * Instances of the class [ChannelChunkSink] uses a [Converter] to translate
  * chunks.
  */
 class ChannelChunkSink<S, T> extends ChunkedConversionSink<S> {
   /**
    * The converter used to translate chunks.
    */
   final Converter<S, T> converter;
@@ skipping 98 matching lines @@
       new ChannelChunkSink<Map, Response>(this, sink);
 }
 
 /**
  * The abstract class [ServerCommunicationChannel] defines the behavior of
  * objects that allow an [AnalysisServer] to receive [Request]s and to return
  * both [Response]s and [Notification]s.
  */
 abstract class ServerCommunicationChannel {
   /**
-   * A stopwatch used to accumulate the amount of time spent converting
-   * incomming requests from Json to objects.
-   */
-  static final CountedStopwatch FromJson = new CountedStopwatch();
-
-  /**
-   * A stopwatch used to accumulate the amount of time spent converting outgoing
-   * responses and notifications from objects to Json.
-   */
-  static final CountedStopwatch ToJson = new CountedStopwatch();
-
-  /**
    * Close the communication channel.
    */
   void close();
 
   /**
    * Listen to the channel for requests. If a request is received, invoke the
    * [onRequest] function. If an error is encountered while trying to read from
    * the socket, invoke the [onError] function. If the socket is closed by the
    * client, invoke the [onDone] function.
    * Only one listener is allowed per channel.
    */
   void listen(void onRequest(Request request), {Function onError, void
       onDone()});
 
   /**
    * Send the given [notification] to the client.
    */
   void sendNotification(Notification notification);
 
   /**
    * Send the given [response] to the client.
    */
   void sendResponse(Response response);
 }