blink: Cleanup class/struct forward declarations

third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 #include "wtf/Vector.h"
 #include <hb.h>
 #include <memory>
 #include <unicode/uscript.h>
 
 namespace blink {
 
 class Font;
 class SimpleFontData;
 class HarfBuzzShaper;
-class UnicodeRangeSet;
 
 // Shaping text runs is split into several stages: Run segmentation, shaping the
 // initial segment, identify shaped and non-shaped sequences of the shaping
 // result, and processing sub-runs by trying to shape them with a fallback font
 // until the last resort font is reached.
 //
 // If caps formatting is requested, an additional lowercase/uppercase
 // segmentation stage is required. In this stage, OpenType features in the font
 // are matched against the requested formatting and formatting is synthesized as
 // required by the CSS Level 3 Fonts Module.
@@ skipping 108 matching lines @@
       hb_buffer_t*);
 
   const UChar* m_normalizedBuffer;
   unsigned m_normalizedBufferLength;
   TextDirection m_textDirection;
 };
 
 }  // namespace blink
 
 #endif  // HarfBuzzShaper_h