Format all dart: library files

sdk/lib/io/io_sink.dart

Index: sdk/lib/io/io_sink.dart
diff --git a/sdk/lib/io/io_sink.dart b/sdk/lib/io/io_sink.dart
index 3a5ca681fa732c3e8cf551b31a3b65990f1feab8..bae95792db6edafc5d70b7833865b6a8a0eb612b 100644
--- a/sdk/lib/io/io_sink.dart
+++ b/sdk/lib/io/io_sink.dart
@@ -19,16 +19,14 @@ part of dart.io;
  * ignored. Use the [done] future to be notified when the [IOSink] is closed.
  */
 abstract class IOSink implements StreamSink<List<int>>, StringSink {
-
   /**
    * Create an [IOSink] that outputs to a [target] [StreamConsumer] of bytes.
    *
    * Text written to [StreamSink] methods is encoded to bytes using [encoding]
    * before being output on [target].
    */
-  factory IOSink(StreamConsumer<List<int>> target,
-                 {Encoding encoding: UTF8})
-      => new _IOSinkImpl(target, encoding);
+  factory IOSink(StreamConsumer<List<int>> target, {Encoding encoding: UTF8}) =>
+      new _IOSinkImpl(target, encoding);
 
   /**
    * The [Encoding] used when writing strings. Depending on the
@@ -166,11 +164,11 @@ class _StreamSinkImpl<T> implements StreamSink<T> {
     if (_hasError) return done;
     // Wait for any sync operations to complete.
     Future targetAddStream() {
-      return _target.addStream(stream)
-          .whenComplete(() {
-            _isBound = false;
-          });
+      return _target.addStream(stream).whenComplete(() {
+        _isBound = false;
+      });
     }
+
     if (_controllerInstance == null) return targetAddStream();
     var future = _controllerCompleter.future;
     _controllerInstance.close();
@@ -258,18 +256,16 @@ class _StreamSinkImpl<T> implements StreamSink<T> {
           _completeDoneError(error, stackTrace);
         }
       });
-   }
+    }
     return _controllerInstance;
   }
 }
 
-
 class _IOSinkImpl extends _StreamSinkImpl<List<int>> implements IOSink {
   Encoding _encoding;
   bool _encodingMutable = true;
 
-  _IOSinkImpl(StreamConsumer<List<int>> target, this._encoding)
-      : super(target);
+  _IOSinkImpl(StreamConsumer<List<int>> target, this._encoding) : super(target);
 
   Encoding get encoding => _encoding;