Remove trailing whitespaces in core, XFA edition.
Review URL: https://codereview.chromium.org/1180333002.
diff --git a/core/include/fxcrt/fx_ext.h b/core/include/fxcrt/fx_ext.h
index 9bb4c29..308f28b 100644
--- a/core/include/fxcrt/fx_ext.h
+++ b/core/include/fxcrt/fx_ext.h
@@ -1,7 +1,7 @@
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
-
+
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_INCLUDE_FXCRT_FX_EXT_H_
