Removing "using" delclarations that import names from the STL library.

Source/core/accessibility/AXRenderObject.cpp

 /*
 * Copyright (C) 2008 Apple 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 54 matching lines @@
 #include "core/rendering/RenderTextFragment.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/RenderWidget.h"
 #include "core/svg/SVGDocument.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/graphics/SVGImage.h"
 #include "platform/text/PlatformLocale.h"
 #include "wtf/StdLibExtras.h"
 
 using blink::WebLocalizedString;
-using namespace std;
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 static inline RenderObject* firstChildInContinuation(RenderObject* renderer)
 {
     RenderObject* r = toRenderInline(renderer)->continuation();
 
     while (r) {
@@ skipping 2257 matching lines @@
         if (label && label->renderer()) {
             LayoutRect labelRect = axObjectCache()->getOrCreate(label)->elementRect();
             result.unite(labelRect);
         }
     }
 
     return result;
 }
 
 } // namespace WebCore