Format all dart: library files

sdk/lib/io/common.dart

Index: sdk/lib/io/common.dart
diff --git a/sdk/lib/io/common.dart b/sdk/lib/io/common.dart
index 5ef4594af844d2e5b78e99f5c3ea0a062149c398..ae9cd1256f139c88f592b202cbf9e0cd9d253781 100644
--- a/sdk/lib/io/common.dart
+++ b/sdk/lib/io/common.dart
@@ -29,7 +29,7 @@ _exceptionFromResponse(response, String message, String path) {
       return new ArgumentError("$message: $path");
     case _OSERROR_RESPONSE:
       var err = new OSError(response[_OSERROR_RESPONSE_MESSAGE],
-                            response[_OSERROR_RESPONSE_ERROR_CODE]);
+          response[_OSERROR_RESPONSE_ERROR_CODE]);
       return new FileSystemException(message, path, err);
     case _FILE_CLOSED_RESPONSE:
       return new FileSystemException("File closed", path);
@@ -73,21 +73,17 @@ class OSError {
     StringBuffer sb = new StringBuffer();
     sb.write("OS Error");
     if (!message.isEmpty) {
-      sb..write(": ")
-        ..write(message);
+      sb..write(": ")..write(message);
       if (errorCode != noErrorCode) {
-        sb..write(", errno = ")
-          ..write(errorCode.toString());
+        sb..write(", errno = ")..write(errorCode.toString());
       }
     } else if (errorCode != noErrorCode) {
-      sb..write(": errno = ")
-        ..write(errorCode.toString());
+      sb..write(": errno = ")..write(errorCode.toString());
     }
     return sb.toString();
   }
 }
 
-
 // Object for holding a buffer and an offset.
 class _BufferAndStart {
   List<int> buffer;
@@ -118,7 +114,6 @@ _BufferAndStart _ensureFastAndSerializableByteData(
   return new _BufferAndStart(newBuffer, 0);
 }
 
-
 class _IOCrypto {
   external static Uint8List getRandomBytes(int count);
 }