Revert "Rename blahHandler to onBlah throughout dart:io."

frog/tests/frog/src/FrogServerTest.dart

 // Copyright (c) 2012, 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('FrogServerTest');
 
 #import('dart:io');
 
 #import('../../../server/frog_server.dart', prefix: 'frogserver');
 
 // TODO(jmesserly): more sane way to import JSON on the VM
 #import('../../../../lib/json/json.dart');
 
 main() {
   // TODO(jmesserly): This test must be run from 'frog' working directory.
   var homedir = new File('.').fullPathSync();
   print('test: setting Frog home directory to $homedir');
 
   // Start the compiler server. 0 causes it to grab any free port.
   var host = '127.0.0.1';
   var compileSocket = frogserver.startServer(homedir, host, 0);
 
   // Connect to the compiler
   var testSocket = new Socket(host, compileSocket.port);
 
   final testId = 'abc' + new Date.now().value;
 
   var bytes = new List<int>();
-  testSocket.onData = () {
+  testSocket.dataHandler = () {
     var pos = bytes.length;
     var len = testSocket.available();
     bytes.insertRange(pos, len);
     testSocket.readList(bytes, pos, len);
     var response = frogserver.tryReadJson(bytes);
     if (response == null) return; // wait for more data
 
     // Verify ID
     Expect.equals(testId, response['id']);
     if (response['kind'] == 'message') {
@@ skipping 16 matching lines @@
   };
 
   // Try a hello world compile
   frogserver.writeJson(testSocket.outputStream, {
     'command': 'compile',
     'id': testId,
     'input': 'tests/hello.dart'
     // Note: intentionally don't specify 'output' so nothing is written to disk
   });
 }