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

Source/core/rendering/RenderMenuList.cpp

Index: Source/core/rendering/RenderMenuList.cpp
diff --git a/Source/core/rendering/RenderMenuList.cpp b/Source/core/rendering/RenderMenuList.cpp
index f900e5885f08ec01e0a2c94393b9697ada470c5d..b38ac33f0f72b708ebdac7554294c3fa33843329 100644
--- a/Source/core/rendering/RenderMenuList.cpp
+++ b/Source/core/rendering/RenderMenuList.cpp
@@ -47,8 +47,6 @@
 #include "platform/text/PlatformLocale.h"
 #include <math.h>
 
-using namespace std;
-
 namespace WebCore {
 
 using namespace HTMLNames;
@@ -181,9 +179,10 @@ void RenderMenuList::updateOptionsWidth()
                 optionWidth += minimumValueForLength(optionStyle->textIndent(), 0);
             if (!text.isEmpty())
                 optionWidth += style()->font().width(text);
-            maxOptionWidth = max(maxOptionWidth, optionWidth);
-        } else if (!text.isEmpty())
-            maxOptionWidth = max(maxOptionWidth, style()->font().width(text));
+            maxOptionWidth = std::max(maxOptionWidth, optionWidth);
+        } else if (!text.isEmpty()) {
+            maxOptionWidth = std::max(maxOptionWidth, style()->font().width(text));
+        }
     }
 
     int width = static_cast<int>(ceilf(maxOptionWidth));
@@ -323,7 +322,7 @@ LayoutRect RenderMenuList::controlClipRect(const LayoutPoint& additionalOffset)
 
 void RenderMenuList::computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const
 {
-    maxLogicalWidth = max(m_optionsWidth, RenderTheme::theme().minimumMenuListSize(style())) + m_innerBlock->paddingLeft() + m_innerBlock->paddingRight();
+    maxLogicalWidth = std::max(m_optionsWidth, RenderTheme::theme().minimumMenuListSize(style())) + m_innerBlock->paddingLeft() + m_innerBlock->paddingRight();
     if (!style()->width().isPercent())
         minLogicalWidth = maxLogicalWidth;
 }
@@ -340,13 +339,13 @@ void RenderMenuList::computePreferredLogicalWidths()
         computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth);
 
     if (styleToUse->minWidth().isFixed() && styleToUse->minWidth().value() > 0) {
-        m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
-        m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
+        m_maxPreferredLogicalWidth = std::max(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
+        m_minPreferredLogicalWidth = std::max(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->minWidth().value()));
     }
 
     if (styleToUse->maxWidth().isFixed()) {
-        m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
-        m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
+        m_maxPreferredLogicalWidth = std::min(m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
+        m_minPreferredLogicalWidth = std::min(m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(styleToUse->maxWidth().value()));
     }
 
     LayoutUnit toAdd = borderAndPaddingWidth();