Rename blahHandler to onBlah throughout dart:io.

tests/standalone/src/StreamPipeTest.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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
 #library("StreamPipeTest");
@@ skipping 66 matching lines @@
 
   void runTest() {
 
     void connectHandler() {
       String srcFileName =
           getDataFilename("tests/standalone/src/readline_test1.dat");
 
       SocketOutputStream socketOutput = _socket.outputStream;
       InputStream fileInput = new File(srcFileName).openInputStream();
 
-      fileInput.closeHandler = () {
+      fileInput.onClosed = () {
         SocketInputStream socketInput = _socket.inputStream;
         var tempDir = new Directory('');
         tempDir.createTempSync();
         var dstFileName = tempDir.path + "/readline_test1.dat";
         var dstFile = new File(dstFileName);
         dstFile.createSync();
         var fileOutput = dstFile.openOutputStream();
 
-        socketInput.closeHandler = () {
+        socketInput.onClosed = () {
           // Check that the resulting file is equal to the initial
           // file.
-          fileOutput.closeHandler = () {
+          fileOutput.onClosed = () {
             bool result = compareFileContent(srcFileName, dstFileName);
             new File(dstFileName).deleteSync();
             tempDir.deleteSync();
             Expect.isTrue(result);
 
             _socket.close();
 
             // Run this twice.
             if (count++ < 2) {
               runTest();
             } else {
               shutdown();
             }
           };
         };
 
         socketInput.pipe(fileOutput);
       };
 
       fileInput.pipe(socketOutput);
     }
 
     // Connect to the server.
     _socket = new Socket(TestingServer.HOST, _port);
     if (_socket !== null) {
-      _socket.connectHandler = connectHandler;
+      _socket.onConnect = connectHandler;
     } else {
       Expect.fail("socket creation failed");
     }
   }
 
   void start() {
     _receivePort.receive((var message, SendPort replyTo) {
       _port = message;
       runTest();
     });
@@ skipping 10 matching lines @@
   SendPort _sendPort;
   Socket _socket;
   int _messages;
 }
 
 
 // The testing server will simply pipe each connecting sockets input
 // stream to its output stream.
 class PipeServer extends TestingServer {
   void connectionHandler(Socket connection) {
-    connection.errorHandler = () { Expect.fail("Socket error"); };
+    connection.onError = () { Expect.fail("Socket error"); };
     connection.inputStream.pipe(connection.outputStream);
   }
 }
 
 
 // Test piping from one file to another and closing both streams
 // after wards.
 testFileToFilePipe1() {
   // Force test to timeout if one of the handlers is
   // not called.
   ReceivePort donePort = new ReceivePort.singleShot();
   donePort.receive((message, ignore) {});
 
   String srcFileName =
       getDataFilename("tests/standalone/src/readline_test1.dat");
   var srcStream = new File(srcFileName).openInputStream();
 
   var tempDir = new Directory('');
   tempDir.createTempSync();
   String dstFileName = tempDir.path + "/readline_test1.dat";
   new File(dstFileName).createSync();
   var dstStream = new File(dstFileName).openOutputStream();
 
-  dstStream.closeHandler = () {
+  dstStream.onClosed = () {
     bool result = compareFileContent(srcFileName, dstFileName);
     new File(dstFileName).deleteSync();
     tempDir.deleteSync();
     Expect.isTrue(result);
     donePort.toSendPort().send(null);
   };
 
   srcStream.pipe(dstStream);
 }
 
@@ skipping 11 matching lines @@
   var srcFile = new File(srcFileName);
   var srcStream = srcFile.openInputStream();
 
   var tempDir = new Directory('');
   tempDir.createTempSync();
   var dstFileName = tempDir.path + "/readline_test1.dat";
   var dstFile = new File(dstFileName);
   dstFile.createSync();
   var dstStream = dstFile.openOutputStream();
 
-  srcStream.closeHandler = () {
+  srcStream.onClosed = () {
     dstStream.write([32]);
     dstStream.close();
-    dstStream.closeHandler = () {
+    dstStream.onClosed = () {
       var src = srcFile.openSync();
       var dst = dstFile.openSync();
       var srcLength = src.lengthSync();
       var dstLength = dst.lengthSync();
       Expect.equals(srcLength + 1, dstLength);
       Expect.isTrue(compareFileContent(srcFileName,
                                        dstFileName,
                                        count: srcLength));
       dst.setPositionSync(srcLength);
       var data = new List<int>(1);
@@ skipping 23 matching lines @@
   var srcFile = new File(srcFileName);
   var srcStream = srcFile.openInputStream();
 
   var tempDir = new Directory('');
   tempDir.createTempSync();
   var dstFileName = tempDir.path + "/readline_test1.dat";
   var dstFile = new File(dstFileName);
   dstFile.createSync();
   var dstStream = dstFile.openOutputStream();
 
-  srcStream.closeHandler = () {
+  srcStream.onClosed = () {
     var srcStream2 = srcFile.openInputStream();
 
-    dstStream.closeHandler = () {
+    dstStream.onClosed = () {
       var src = srcFile.openSync();
       var dst = dstFile.openSync();
       var srcLength = src.lengthSync();
       var dstLength = dst.lengthSync();
       Expect.equals(srcLength * 2, dstLength);
       Expect.isTrue(compareFileContent(srcFileName,
                                        dstFileName,
                                        count: srcLength));
       Expect.isTrue(compareFileContent(srcFileName,
                                        dstFileName,
@@ skipping 13 matching lines @@
   srcStream.pipe(dstStream, close: false);
 }
 
 
 main() {
   testFileToFilePipe1();
   testFileToFilePipe2();
   testFileToFilePipe3();
   PipeServerGame echoServerGame = new PipeServerGame.start();
 }