[LayoutNG] Misc fixes in ShapingLineBreaker

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 50 matching lines @@
       const Font*,
       const TextRun&,
       float position_offset,
       unsigned count);
   ~ShapeResult();
 
   float Width() const { return width_; }
   LayoutUnit SnappedWidth() const { return LayoutUnit::FromFloatCeil(width_); }
   const FloatRect& Bounds() const { return glyph_bounding_box_; }
   unsigned NumCharacters() const { return num_characters_; }
+  // The character start/end index of a range shape result.
+  unsigned StartIndexForResult() const;
+  unsigned EndIndexForResult() const;
   void FallbackFonts(HashSet<const SimpleFontData*>*) const;
   TextDirection Direction() const {
     return static_cast<TextDirection>(direction_);
   }
   bool Rtl() const { return Direction() == TextDirection::kRtl; }
   bool HasVerticalOffsets() const { return has_vertical_offsets_; }
 
   // For memory reporting.
   size_t ByteSize() const;
 
@@ skipping 44 matching lines @@
   unsigned has_vertical_offsets_ : 1;
 
   friend class HarfBuzzShaper;
   friend class ShapeResultBuffer;
   friend class ShapeResultBloberizer;
 };
 
 }  // namespace blink
 
 #endif  // ShapeResult_h