Remove extraneous "data_" on RareNonInheritedData member.

third_party/WebKit/Source/core/style/StyleRareNonInheritedData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 83 matching lines @@
 
   int order_;
 
   LengthPoint perspective_origin_;
   LengthPoint object_position_;
 
   LineClampValue line_clamp_;           // An Apple extension.
   unsigned draggable_region_mode_ : 2;  // DraggableRegionMode
 
   DataRef<StyleDeprecatedFlexibleBoxData>
-      deprecated_flexible_box_data_data_;  // Flexible box properties
+      deprecated_flexible_box_data_;  // Flexible box properties
   DataRef<StyleFlexibleBoxData> flexible_box_data_;
   DataRef<StyleMultiColData> multi_col_data_;  //  CSS3 multicol properties
   DataRef<StyleTransformData>
       transform_data_;  // Transform properties (rotate, scale, skew, etc.)
   DataRef<StyleWillChangeData> will_change_data_;  // CSS Will Change
 
   DataPersistent<StyleFilterData>
       filter_;  // Filter operations (url, sepia, blur, etc.)
   DataPersistent<StyleFilterData>
       backdrop_filter_;  // Backdrop filter operations (url, sepia, blur, etc.)
@@ skipping 104 matching lines @@
   unsigned has_author_border_ : 1;  // Whether there is a author-defined border.
 
  private:
   StyleRareNonInheritedData();
   StyleRareNonInheritedData(const StyleRareNonInheritedData&);
 };
 
 }  // namespace blink
 
 #endif  // StyleRareNonInheritedData_h