Revert of Remove StringBuilder::appendLiteral.

third_party/WebKit/Source/core/editing/Position.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2009 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 576 matching lines @@
 }
 
 #ifndef NDEBUG
 
 template <typename Strategy>
 void PositionTemplate<Strategy>::formatForDebugger(char* buffer, unsigned length) const
 {
     StringBuilder result;
 
     if (isNull()) {
-        result.append("<null>");
+        result.appendLiteral("<null>");
     } else {
         char s[1024];
-        result.append("offset ");
+        result.appendLiteral("offset ");
         result.appendNumber(m_offset);
-        result.append(" of ");
+        result.appendLiteral(" of ");
         anchorNode()->formatForDebugger(s, sizeof(s));
         result.append(s);
     }
 
     strncpy(buffer, result.toString().utf8().data(), length - 1);
 }
 
 template <typename Strategy>
 void PositionTemplate<Strategy>::showAnchorTypeAndOffset() const
 {
@@ skipping 90 matching lines @@
 
 void showTree(const blink::Position* pos)
 {
     if (pos)
         pos->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil)\n");
 }
 
 #endif