Revert of Remove StringBuilder::appendLiteral.

third_party/WebKit/Source/wtf/InstanceCounter.cpp

 /*
  * Copyright (C) 2013 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 115 matching lines @@
     StringBuilder builder;
 
     builder.append('{');
     HashMap<String, int>::iterator it = m_counterMap.begin();
     HashMap<String, int>::iterator itEnd = m_counterMap.end();
     for (; it != itEnd; ++it) {
         if (it != m_counterMap.begin())
             builder.append(',');
         builder.append('"');
         builder.append(it->key);
-        builder.append("\": ");
+        builder.appendLiteral("\": ");
         builder.appendNumber(it->value);
     }
     builder.append('}');
 
     return builder.toString();
 }
 
 #else
 
 String dumpRefCountedInstanceCounts()
 {
     return String("{}");
 }
 
 #endif // ENABLE(INSTANCE_COUNTER)
 
 } // namespace WTF