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

Source/web/WebAccessibilityObject.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 666 matching lines @@
     if (!m_private->exposesTitleUIElement())
         return WebAccessibilityObject();
 
     return WebAccessibilityObject(m_private->titleUIElement());
 }
 
 WebURL WebAccessibilityObject::url() const
 {
     if (isDetached())
         return WebURL();
-    
+
     return m_private->url();
 }
 
 bool WebAccessibilityObject::supportsRangeValue() const
 {
     if (isDetached())
         return false;
 
     return m_private->supportsRangeValue();
 }
@@ skipping 314 matching lines @@
     m_private = object;
     return *this;
 }
 
 WebAccessibilityObject::operator WTF::PassRefPtr<WebCore::AccessibilityObject>() const
 {
     return m_private.get();
 }
 
 } // namespace WebKit