Removing "using" declarations that import names in the C++ Standard library.(Source/platform/[fonts…

Source/platform/fonts/SimpleFontData.cpp

 /*
  * Copyright (C) 2005, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov
  *
  * 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.
@@ skipping 14 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "platform/fonts/SimpleFontData.h"
 
 #include "wtf/MathExtras.h"
 
-using namespace std;
-
 namespace blink {
 
 const float smallCapsFontSizeMultiplier = 0.7f;
 const float emphasisMarkFontSizeMultiplier = 0.5f;
 
 SimpleFontData::SimpleFontData(const FontPlatformData& platformData, PassRefPtr<CustomFontData> customData, bool isTextOrientationFallback)
     : m_maxCharWidth(-1)
     , m_avgCharWidth(-1)
     , m_platformData(platformData)
     , m_treatAsFixedPitch(false)
@@ skipping 42 matching lines @@
         Glyph digitZeroGlyph = glyphPageZero->glyphForCharacter(digitZeroChar);
         if (digitZeroGlyph)
             m_avgCharWidth = widthForGlyph(digitZeroGlyph);
     }
 
     // If we can't retrieve the width of a '0', fall back to the x height.
     if (m_avgCharWidth <= 0.f)
         m_avgCharWidth = m_fontMetrics.xHeight();
 
     if (m_maxCharWidth <= 0.f)
-        m_maxCharWidth = max(m_avgCharWidth, m_fontMetrics.floatAscent());
+        m_maxCharWidth = std::max(m_avgCharWidth, m_fontMetrics.floatAscent());
 }
 
 void SimpleFontData::platformGlyphInit()
 {
     GlyphPage* glyphPageZero = GlyphPageTreeNode::getRootChild(this, 0)->page();
     if (!glyphPageZero) {
         WTF_LOG_ERROR("Failed to get glyph page zero.");
         m_spaceGlyph = 0;
         m_spaceWidth = 0;
         m_zeroGlyph = 0;
@@ skipping 147 matching lines @@
 PassRefPtr<SimpleFontData> SimpleFontData::createScaledFontData(const FontDescription& fontDescription, float scaleFactor) const
 {
     // FIXME: Support scaled SVG fonts. Given that SVG is scalable in general this should be achievable.
     if (isSVGFont())
         return nullptr;
 
     return platformCreateScaledFontData(fontDescription, scaleFactor);
 }
 
 } // namespace blink