Remove deprecated string features.

sdk/lib/io/string_stream.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.
 
 part of dart.io;
 
 // Interface for decoders decoding binary data into string data. The
 // decoder keeps track of line breaks during decoding.
 abstract class _StringDecoder {
   // Add more binary data to be decoded. The ownership of the buffer
@@ skipping 282 matching lines @@
   }
 }
 
 
 // Utility class for decoding Windows current code page data delivered
 // as a stream of bytes.
 class _WindowsCodePageDecoder extends _StringDecoderBase {
   // Process the next chunk of data.
   bool _processNext() {
     List<int> bytes = _bufferList.readBytes(_bufferList.length);
-    for (var charCode in _decodeBytes(bytes).charCodes) {
+    for (var charCode in _decodeBytes(bytes).codeUnits) {
       addChar(charCode);
     }
     return true;
   }
 
   external static String _decodeBytes(List<int> bytes);
 }
 
 
 // Interface for encoders encoding string data into binary data.
@@ skipping 23 matching lines @@
     return utf8CodeUnits.length;
   }
 }
 
 
 // Utility class for encoding a string into a Latin1 byte stream.
 class _Latin1Encoder implements _StringEncoder {
   List<int> encodeString(String string) {
     List<int> result = new Uint8List(string.length);
     for (int i = 0; i < string.length; i++) {
-      int charCode = string.charCodeAt(i);
+      int charCode = string.codeUnitAt(i);
       if (charCode > 255) {
         throw new EncoderException(
-            "No ISO_8859_1 encoding for code point $charCode");
+            "No ISO_8859_1 encoding for code unit $charCode");
       }
       result[i] = charCode;
     }
     return result;
   }
 }
 
 
 // Utility class for encoding a string into an ASCII byte stream.
 class _AsciiEncoder implements _StringEncoder {
   List<int> encodeString(String string) {
     List<int> result = new Uint8List(string.length);
     for (int i = 0; i < string.length; i++) {
-      int charCode = string.charCodeAt(i);
+      int charCode = string.codeUnitAt(i);
       if (charCode > 127) {
         throw new EncoderException(
-            "No ASCII encoding for code point $charCode");
+            "No ASCII encoding for code unit $charCode");
       }
       result[i] = charCode;
     }
     return result;
   }
 }
 
 
 // Utility class for encoding a string into a current windows
 // code page byte list.
@@ skipping 207 matching lines @@
   bool _inputClosed = false;  // Is the underlying input stream closed?
   bool _closed = false;  // Is this stream closed.
   bool _eof = false;  // Has all data been read from the decoder?
   Timer _scheduledDataCallback;
   Timer _scheduledLineCallback;
   Timer _scheduledCloseCallback;
   Function _clientDataHandler;
   Function _clientLineHandler;
   Function _clientCloseHandler;
 }