Moving string normalization out of HarfBuzz

third_party/WebKit/Source/platform/text/TextRun.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, 2006, 2007, 2011 Apple Inc. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 240 matching lines @@
     m_directionalOverride = override;
   }
 
   void setTextJustify(TextJustify textJustify) {
     m_textJustify = static_cast<unsigned>(textJustify);
   }
   TextJustify getTextJustify() const {
     return static_cast<TextJustify>(m_textJustify);
   }
 
+  // Up-converts to UTF-16 as needed and normalizes spaces and Unicode control
+  // characters as per the CSS Text Module Level 3 specification.
+  // https://drafts.csswg.org/css-text-3/#white-space-processing
+  std::unique_ptr<UChar[]> normalizedUTF16(unsigned* resultLength) const;
+
  private:
   union {
     const LChar* characters8;
     const UChar* characters16;
   } m_data;
   // Marks the end of the characters buffer.  Default equals to m_len.
   unsigned m_charactersLength;
   unsigned m_len;
 
   // m_xpos is the x position relative to the left start of the text line, not
@@ skipping 31 matching lines @@
 
   const TextRun& run;
   unsigned from;
   unsigned to;
   FloatRect bounds;
   sk_sp<SkTextBlob>* cachedTextBlob;
 };
 
 }  // namespace blink
 #endif