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

Source/core/xml/parser/XMLDocumentParser.cpp

Index: Source/core/xml/parser/XMLDocumentParser.cpp
diff --git a/Source/core/xml/parser/XMLDocumentParser.cpp b/Source/core/xml/parser/XMLDocumentParser.cpp
index 879afb0c5ce2761565c0e42e4b1f5393c00f1802..ebdaa8a18ffd90629d6b12403599a8525fa2653d 100644
--- a/Source/core/xml/parser/XMLDocumentParser.cpp
+++ b/Source/core/xml/parser/XMLDocumentParser.cpp
@@ -72,8 +72,6 @@
 #include "wtf/Vector.h"
 #include "wtf/unicode/UTF8.h"
 
-using namespace std;
-
 namespace WebCore {
 
 using namespace HTMLNames;
@@ -81,7 +79,7 @@ using namespace HTMLNames;
 // FIXME: HTMLConstructionSite has a limit of 512, should these match?
 static const unsigned maxXMLTreeDepth = 5000;
 
-static inline String toString(const xmlChar* string, size_t length)
+static inline String toString(const xmlChar* string, std::size_t length)
 {
     return String::fromUTF8(reinterpret_cast<const char*>(string), length);
 }
@@ -91,7 +89,7 @@ static inline String toString(const xmlChar* string)
     return String::fromUTF8(reinterpret_cast<const char*>(string));
 }
 
-static inline AtomicString toAtomicString(const xmlChar* string, size_t length)
+static inline AtomicString toAtomicString(const xmlChar* string, std::size_t length)
 {
     return AtomicString::fromUTF8(reinterpret_cast<const char*>(string), length);
 }
@@ -333,7 +331,7 @@ void XMLDocumentParser::clearCurrentNodeStack()
 
     if (m_currentNodeStack.size()) { // Aborted parsing.
 #if !ENABLE(OILPAN)
-        for (size_t i = m_currentNodeStack.size() - 1; i != 0; --i)
+        for (std::size_t i = m_currentNodeStack.size() - 1; i != 0; --i)
             m_currentNodeStack[i]->deref();
         if (m_currentNodeStack[0] && m_currentNodeStack[0] != document())
             m_currentNodeStack[0]->deref();
@@ -1309,7 +1307,7 @@ static xmlEntityPtr sharedXHTMLEntity()
     return &entity;
 }
 
-static size_t convertUTF16EntityToUTF8(const UChar* utf16Entity, size_t numberOfCodeUnits, char* target, size_t targetSize)
+static std::size_t convertUTF16EntityToUTF8(const UChar* utf16Entity, std::size_t numberOfCodeUnits, char* target, std::size_t targetSize)
 {
     const char* originalTarget = target;
     WTF::Unicode::ConversionResult conversionResult = WTF::Unicode::convertUTF16ToUTF8(&utf16Entity,
@@ -1326,12 +1324,12 @@ static size_t convertUTF16EntityToUTF8(const UChar* utf16Entity, size_t numberOf
 static xmlEntityPtr getXHTMLEntity(const xmlChar* name)
 {
     UChar utf16DecodedEntity[4];
-    size_t numberOfCodeUnits = decodeNamedEntityToUCharArray(reinterpret_cast<const char*>(name), utf16DecodedEntity);
+    std::size_t numberOfCodeUnits = decodeNamedEntityToUCharArray(reinterpret_cast<const char*>(name), utf16DecodedEntity);
     if (!numberOfCodeUnits)
         return 0;
 
     ASSERT(numberOfCodeUnits <= 4);
-    size_t entityLengthInUTF8 = convertUTF16EntityToUTF8(utf16DecodedEntity, numberOfCodeUnits,
+    std::size_t entityLengthInUTF8 = convertUTF16EntityToUTF8(utf16DecodedEntity, numberOfCodeUnits,
         reinterpret_cast<char*>(sharedXHTMLEntityResult), WTF_ARRAY_LENGTH(sharedXHTMLEntityResult));
     if (!entityLengthInUTF8)
         return 0;