Implement backspace state machine for complex emoji sequence.

third_party/WebKit/Source/wtf/text/CharacterNames.h

 /*
  * Copyright (C) 2007, 2009, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 33 matching lines @@
 const UChar blackCircleCharacter = 0x25CF;
 const UChar blackSquareCharacter = 0x25A0;
 const UChar blackUpPointingTriangleCharacter = 0x25B2;
 const UChar bulletCharacter = 0x2022;
 const UChar bullseyeCharacter = 0x25CE;
 const UChar carriageReturnCharacter = 0x000D;
 const UChar combiningEnclosingCircleBackslashCharacter = 0x20E0;
 const UChar combiningEnclosingKeycapCharacter = 0x20E3;
 const UChar ethiopicPrefaceColonCharacter = 0x1366;
 const UChar ethiopicWordspaceCharacter = 0x1361;
+const UChar heavyBlackHeartCharacter = 0x2764;
 const UChar32 eyeCharacter = 0x1F441;
+const UChar32 boyCharacter = 0x1F466;
+const UChar32 girlCharacter = 0x1F467;
+const UChar32 manCharacter = 0x1F468;
+const UChar32 womanCharacter = 0x1F469;
+const UChar32 kissMarkCharacter = 0x1F48B;
 const UChar32 familyCharacter = 0x1F46A;
 const UChar firstStrongIsolateCharacter = 0x2068;
 const UChar fisheyeCharacter = 0x25C9;
 const UChar fullstopCharacter = 0x002E;
 const UChar hebrewPunctuationGereshCharacter = 0x05F3;
 const UChar hebrewPunctuationGershayimCharacter = 0x05F4;
 const UChar hiraganaLetterSmallACharacter = 0x3041;
 const UChar horizontalEllipsisCharacter = 0x2026;
 const UChar hyphenCharacter = 0x2010;
 const UChar hyphenMinusCharacter = 0x002D;
@@ skipping 128 matching lines @@
 using WTF::Unicode::whiteSesameDotCharacter;
 using WTF::Unicode::whiteUpPointingTriangleCharacter;
 using WTF::Unicode::yenSignCharacter;
 using WTF::Unicode::zeroWidthJoinerCharacter;
 using WTF::Unicode::zeroWidthNonJoinerCharacter;
 using WTF::Unicode::zeroWidthSpaceCharacter;
 using WTF::Unicode::zeroWidthNoBreakSpaceCharacter;
 using WTF::Unicode::kMaxCodepoint;
 
 #endif // CharacterNames_h