Handle U+3099/309A Kana Voiced Sound Marks in complex path

Source/platform/fonts/Character.cpp

 /*
  * Copyright (C) 2014 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 89 matching lines @@
         // U+1A00 through U+1CFF Buginese, Tai Tham, Balinese, Batak, Lepcha, Vedic
         0x1A00, 0x1CFF,
         // U+1DC0 through U+1DFF Comining diacritical mark supplement
         0x1DC0, 0x1DFF,
         // U+20D0 through U+20FF Combining marks for symbols
         0x20D0, 0x20FF,
         // U+2CEF through U+2CF1 Combining marks for Coptic
         0x2CEF, 0x2CF1,
         // U+302A through U+302F Ideographic and Hangul Tone marks
         0x302A, 0x302F,
+        // Combining Katakana-Hiragana Voiced/Semi-voiced Sound Mark
+        0x3099, 0x309A,
         // U+A67C through U+A67D Combining marks for old Cyrillic
         0xA67C, 0xA67D,
         // U+A6F0 through U+A6F1 Combining mark for Bamum
         0xA6F0, 0xA6F1,
         // U+A800 through U+ABFF Nagri, Phags-pa, Saurashtra, Devanagari Extended,
         // Hangul Jamo Ext. A, Javanese, Myanmar Extended A, Tai Viet, Meetei Mayek
         0xA800, 0xABFF,
         // U+D7B0 through U+D7FF Hangul Jamo Ext. B
         0xD7B0, 0xD7FF,
         // U+FE00 through U+FE0F Unicode variation selectors
@@ skipping 376 matching lines @@
 {
     return normalizeSpacesInternal(characters, length);
 }
 
 String Character::normalizeSpaces(const UChar* characters, unsigned length)
 {
     return normalizeSpacesInternal(characters, length);
 }
 
 } // namespace blink