Revert of Remove StringBuilder::appendLiteral.

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

 /*
  * Copyright (C) 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  * 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:
  * 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
@@ skipping 123 matching lines @@
     void append(UChar32 c)
     {
         if (U_IS_BMP(c)) {
             append(static_cast<UChar>(c));
             return;
         }
         append(U16_LEAD(c));
         append(U16_TRAIL(c));
     }
 
+    template<unsigned charactersCount>
+    ALWAYS_INLINE void appendLiteral(const char (&characters)[charactersCount]) { append(characters, charactersCount - 1); }
+
     void appendNumber(int);
     void appendNumber(unsigned);
     void appendNumber(long);
     void appendNumber(unsigned long);
     void appendNumber(long long);
     void appendNumber(unsigned long long);
     void appendNumber(double, unsigned precision = 6, TrailingZerosTruncatingPolicy = TruncateTrailingZeros);
 
     String toString()
     {
@@ skipping 214 matching lines @@
 inline bool operator==(const StringBuilder& a, const String& b) { return equal(a, b); }
 inline bool operator!=(const StringBuilder& a, const String& b) { return !equal(a, b); }
 inline bool operator==(const String& a, const StringBuilder& b) { return equal(b, a); }
 inline bool operator!=(const String& a, const StringBuilder& b) { return !equal(b, a); }
 
 } // namespace WTF
 
 using WTF::StringBuilder;
 
 #endif // StringBuilder_h