Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core)

Source/wtf/text/StringOperators.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 56 matching lines @@
         StringTypeAdapter<StringType2> adapter2(m_string2);
         adapter1.writeTo(destination);
         adapter2.writeTo(destination + adapter1.length());
     }
 
     unsigned length()
     {
         StringTypeAdapter<StringType1> adapter1(m_string1);
         StringTypeAdapter<StringType2> adapter2(m_string2);
         return adapter1.length() + adapter2.length();
-    }    
+    }
 
 private:
     StringType1 m_string1;
     StringType2 m_string2;
 };
 
 template<typename StringType1, typename StringType2>
 class StringTypeAdapter<StringAppend<StringType1, StringType2> > {
 public:
     StringTypeAdapter<StringAppend<StringType1, StringType2> >(StringAppend<StringType1, StringType2>& buffer)
@@ skipping 68 matching lines @@
 
 template<typename U, typename V, typename W>
 StringAppend<StringAppend<U, V>, W> operator+(const StringAppend<U, V>& string1, W string2)
 {
     return StringAppend<StringAppend<U, V>, W>(string1, string2);
 }
 
 } // namespace WTF
 
 #endif // StringOperators_h