Cleanup in //runtime/bin

runtime/bin/io_buffer.h

 // 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.
 
 #ifndef BIN_IO_BUFFER_H_
 #define BIN_IO_BUFFER_H_
 
+#include "include/dart_api.h"
 #include "platform/globals.h"
 
-#include "include/dart_api.h"
-
-
 namespace dart {
 namespace bin {
 
 class IOBuffer {
  public:
   // Allocate an IO buffer dart object (of type Uint8List) backed by
   // an external byte array.
   static Dart_Handle Allocate(intptr_t size, uint8_t **buffer);
 
   // Allocate IO buffer storage.
@@ skipping 14 matching lines @@
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(IOBuffer);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_IO_BUFFER_H_