Omit "int" when using "unsigned" modifier

Source/wtf/text/StringBuilder.cpp

 /*
  * Copyright (C) 2010 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 303 matching lines @@
         while (characters < end)
             *(dest++) = *(characters++);
     }
 }
 
 void StringBuilder::appendNumber(int number)
 {
     numberToStringSigned<StringBuilder>(number, this);
 }
 
-void StringBuilder::appendNumber(unsigned int number)
+void StringBuilder::appendNumber(unsigned number)
 {
     numberToStringUnsigned<StringBuilder>(number, this);
 }
 
 void StringBuilder::appendNumber(long number)
 {
     numberToStringSigned<StringBuilder>(number, this);
 }
 
 void StringBuilder::appendNumber(unsigned long number)
@@ skipping 22 matching lines @@
     if (!canShrink())
         return;
     if (m_is8Bit)
         reallocateBuffer<LChar>(m_length);
     else
         reallocateBuffer<UChar>(m_length);
     m_string = m_buffer.release();
 }
 
 } // namespace WTF