blink: Cleanup class/struct forward declarations

third_party/WebKit/Source/platform/fonts/shaping/ShapeResult.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 30 matching lines @@
 #include <memory>
 
 struct hb_buffer_t;
 
 namespace blink {
 
 class Font;
 class ShapeResultSpacing;
 class SimpleFontData;
 class TextRun;
-struct GlyphData;
 
 class PLATFORM_EXPORT ShapeResult : public RefCounted<ShapeResult> {
  public:
   static PassRefPtr<ShapeResult> create(const Font* font,
                                         unsigned numCharacters,
                                         TextDirection direction) {
     return adoptRef(new ShapeResult(font, numCharacters, direction));
   }
   static PassRefPtr<ShapeResult> createForTabulationCharacters(
       const Font*,
@@ skipping 49 matching lines @@
   // Tracks whether any runs contain glyphs with a y-offset != 0.
   unsigned m_hasVerticalOffsets : 1;
 
   friend class HarfBuzzShaper;
   friend class ShapeResultBuffer;
 };
 
 }  // namespace blink
 
 #endif  // ShapeResult_h