Cleanup namespace usage in Source/web/Web[I-Z]*.cpp

Source/web/WebOptionElement.cpp

 /*
  * Copyright (C) 2010 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 19 matching lines @@
 
 #include "config.h"
 #include "public/web/WebOptionElement.h"
 
 #include "core/HTMLNames.h"
 #include "core/html/HTMLOptionElement.h"
 #include "core/html/HTMLSelectElement.h"
 #include "public/platform/WebString.h"
 #include "wtf/PassRefPtr.h"
 
-using namespace blink;
-using namespace HTMLNames;
-
 namespace blink {
 
 void WebOptionElement::setValue(const WebString& newValue)
 {
     unwrap<HTMLOptionElement>()->setValue(newValue);
 }
 
 WebString WebOptionElement::value() const
 {
     return constUnwrap<HTMLOptionElement>()->value();
@@ skipping 29 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebOptionElement::operator PassRefPtrWillBeRawPtr<HTMLOptionElement>() const
 {
     return toHTMLOptionElement(m_private.get());
 }
 
 } // namespace blink