Migrate WTF::Vector::append() to ::push_back() in WTF::HexNumber

third_party/WebKit/Source/wtf/text/WTFString.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010, 2012 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 40 matching lines @@
   Vector<char> buffer;
   for (unsigned i = 0; i < impl->length(); ++i) {
     UChar ch = (*impl)[i];
     if (isASCIIPrintable(ch)) {
       if (ch == '\\')
         buffer.push_back('\\');
       buffer.push_back(static_cast<char>(ch));
     } else {
       buffer.push_back('\\');
       buffer.push_back('u');
-      appendUnsignedAsHexFixedSize(ch, buffer, 4);
+      HexNumber::appendUnsignedAsHexFixedSize(ch, buffer, 4);
     }
   }
   buffer.push_back('\0');
   return buffer;
 }
 
 }  // namespace
 
 // Construct a string with UTF-16 data.
 String::String(const UChar* characters, unsigned length)
@@ skipping 764 matching lines @@
   return out << '"';
 }
 
 #ifndef NDEBUG
 void String::show() const {
   dataLogF("%s\n", asciiDebug(impl()).data());
 }
 #endif
 
 }  // namespace WTF