Removing using declarations that import names in the C++ Standard library.

Source/core/html/HTMLAreaElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2009, 2011 Apple Inc. 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.
  *
@@ skipping 14 matching lines @@
 #include "HTMLNames.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLMapElement.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderImage.h"
 #include "core/rendering/RenderView.h"
 #include "platform/LengthFunctions.h"
 #include "platform/graphics/Path.h"
 #include "platform/transforms/AffineTransform.h"
 
-using namespace std;
-
 namespace WebCore {
 
 using namespace HTMLNames;
 
 inline HTMLAreaElement::HTMLAreaElement(Document& document)
     : HTMLAnchorElement(areaTag, document)
     , m_lastSize(-1, -1)
     , m_shape(Unknown)
 {
     ScriptWrappable::init(this);
@@ skipping 98 matching lines @@
                 int numPoints = m_coords.size() / 2;
                 path.moveTo(FloatPoint(minimumValueForLength(m_coords[0], width).toFloat(), minimumValueForLength(m_coords[1], height).toFloat()));
                 for (int i = 1; i < numPoints; ++i)
                     path.addLineTo(FloatPoint(minimumValueForLength(m_coords[i * 2], width).toFloat(), minimumValueForLength(m_coords[i * 2 + 1], height).toFloat()));
                 path.closeSubpath();
             }
             break;
         case Circle:
             if (m_coords.size() >= 3) {
                 Length radius = m_coords[2];
-                float r = min(minimumValueForLength(radius, width).toFloat(), minimumValueForLength(radius, height).toFloat());
+                float r = std::min(minimumValueForLength(radius, width).toFloat(), minimumValueForLength(radius, height).toFloat());
                 path.addEllipse(FloatRect(minimumValueForLength(m_coords[0], width).toFloat() - r, minimumValueForLength(m_coords[1], height).toFloat() - r, 2 * r, 2 * r));
             }
             break;
         case Rect:
             if (m_coords.size() >= 4) {
                 float x0 = minimumValueForLength(m_coords[0], width).toFloat();
                 float y0 = minimumValueForLength(m_coords[1], height).toFloat();
                 float x1 = minimumValueForLength(m_coords[2], width).toFloat();
                 float y1 = minimumValueForLength(m_coords[3], height).toFloat();
                 path.addRect(FloatRect(x0, y0, x1 - x0, y1 - y0));
@@ skipping 64 matching lines @@
         return;
 
     HTMLImageElement* imageElement = this->imageElement();
     if (!imageElement)
         return;
 
     imageElement->updateFocusAppearance(restorePreviousSelection);
 }
 
 }