Rename Timer.repeating to Timer.periodic.

tests/standalone/io/http_shutdown_test.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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
 import "dart:async";
@@ skipping 102 matching lines @@
 
   });
 }
 
 
 void test4() {
   HttpServer.bind().then((server) {
 
   server.listen((var request) {
     request.listen((_) {}, onDone: () {
-      new Timer.repeating(new Duration(milliseconds: 100), (timer) {
+      new Timer.periodic(new Duration(milliseconds: 100), (timer) {
         if (server.connectionsInfo().total == 0) {
           server.close();
           timer.cancel();
         }
       });
       request.response.close();
     });
   });
 
   var client= new HttpClient();
@@ skipping 34 matching lines @@
             // TODO(sgjesse): Make this test work with
             //request.response instead of request.close() return
             //return request.response;
             request.done.catchError((e) {});
             return request.close();
           })
         .then((response) { })
         .catchError((e) { }, test: (e) => e is HttpParserException);
     }
     bool clientClosed = false;
-    new Timer.repeating(new Duration(milliseconds: 100), (timer) {
+    new Timer.periodic(new Duration(milliseconds: 100), (timer) {
       if (!clientClosed) {
         if (server.connectionsInfo().total == totalConnections) {
           clientClosed = true;
           client.close(force: true);
         }
       } else {
         if (server.connectionsInfo().total == 0) {
           server.close();
           timer.cancel();
         }
       }
     });
   });
 }
 
 
 void main() {
   test1(1);
   test1(10);
   test2(1, 10);
   test2(10, 10);
   test2(10, 1000);
   test3(1);
   test3(10);
   test4();
   test5(1);
   test5(10);
 }