Remove deprecated StringBuffer.add, addAll and addCharCode.

samples/chat/chat_server_lib.dart

 // Copyright (c) 2013, 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 chat_server;
 import 'dart:async';
 import 'dart:io';
 import 'dart:isolate';
 import 'dart:json' as json;
 import 'dart:math';
@@ skipping 359 matching lines @@
     response.contentLength = 0;
     response.close();
   }
 
   // Join request:
   // { "request": "join",
   //   "handle": <handle> }
   void _joinHandler(HttpRequest request, HttpResponse response) {
     StringBuffer body = new StringBuffer();
     request.listen(
-      (data) => body.add(new String.fromCharCodes(data)),
+      (data) => body.write(new String.fromCharCodes(data)),
       onDone: () {
         String data = body.toString();
         if (data != null) {
           var requestData = json.parse(data);
           if (requestData["request"] == "join") {
             String handle = requestData["handle"];
             if (handle != null) {
               // New user joining.
               User user = _topic._userJoined(handle);
 
@@ skipping 13 matching lines @@
         }
       });
   }
 
   // Leave request:
   // { "request": "leave",
   //   "sessionId": <sessionId> }
   void _leaveHandler(HttpRequest request, HttpResponse response) {
     StringBuffer body = new StringBuffer();
     request.listen(
-      (data) => body.add(new String.fromCharCodes(data)),
+      (data) => body.write(new String.fromCharCodes(data)),
       onDone: () {
         String data = body.toString();
         var requestData = json.parse(data);
         if (requestData["request"] == "leave") {
           String sessionId = requestData["sessionId"];
           if (sessionId != null) {
             // User leaving.
             _topic._userLeft(sessionId);
 
             // Send response.
             Map responseData = new Map();
             responseData["response"] = "leave";
             _sendJSONResponse(response, responseData);
           } else {
             _protocolError(request, response);
           }
         } else {
           _protocolError(request, response);
         }
       });
   }
 
   // Message request:
   // { "request": "message",
   //   "sessionId": <sessionId>,
   //   "message": <message> }
   void _messageHandler(HttpRequest request, HttpResponse response) {
     StringBuffer body = new StringBuffer();
     request.listen(
-      (data) => body.add(new String.fromCharCodes(data)),
+      (data) => body.write(new String.fromCharCodes(data)),
       onDone: () {
         String data = body.toString();
         _messageCount++;
         _messageRate.record(1);
         var requestData = json.parse(data);
         if (requestData["request"] == "message") {
           String sessionId = requestData["sessionId"];
           if (sessionId != null) {
             // New message from user.
             bool success = _topic._userMessage(requestData);
@@ skipping 16 matching lines @@
   }
 
   // Receive request:
   // { "request": "receive",
   //   "sessionId": <sessionId>,
   //   "nextMessage": <nextMessage>,
   //   "maxMessages": <maxMesssages> }
   void _receiveHandler(HttpRequest request, HttpResponse response) {
     StringBuffer body = new StringBuffer();
     request.listen(
-      (data) => body.add(new String.fromCharCodes(data)),
+      (data) => body.write(new String.fromCharCodes(data)),
       onDone: () {
         String data = body.toString();
         var requestData = json.parse(data);
         if (requestData["request"] == "receive") {
           String sessionId = requestData["sessionId"];
           int nextMessage = requestData["nextMessage"];
           int maxMessages = requestData["maxMessages"];
           if (sessionId != null && nextMessage != null) {
 
             void sendResponse(messages) {
@@ skipping 179 matching lines @@
     }
   }
 
   int _timeRange;
   List<int> _buckets;
   int _currentBucket;
   int _currentBucketTime;
   num _bucketTimeRange;
   int _sum;
 }