Fix style erros in XPath-related files.

Source/core/xml/XPathFunctions.h

 /*
  * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
  * Copyright (C) 2006, 2009 Apple Inc.
  *
  * 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 13 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef XPathFunctions_h
 #define XPathFunctions_h
 
 #include "core/xml/XPathExpressionNode.h"
 
 namespace WebCore {
 
-    namespace XPath {
+namespace XPath {
 
-        class Function : public Expression {
-        public:
-            void setArguments(WillBeHeapVector<OwnPtrWillBeMember<Expression> >&);
-            void setName(const String& name) { m_name = name; }
-        protected:
-            Expression* arg(int pos) { return subExpr(pos); }
-            const Expression* arg(int pos) const { return subExpr(pos); }
-            unsigned argCount() const { return subExprCount(); }
-            String name() const { return m_name; }
+class Function : public Expression {
+public:
+    void setArguments(WillBeHeapVector<OwnPtrWillBeMember<Expression> >&);
+    void setName(const String& name) { m_name = name; }
 
-        private:
-            String m_name;
-        };
+protected:
+    Expression* arg(int pos) { return subExpr(pos); }
+    const Expression* arg(int pos) const { return subExpr(pos); }
+    unsigned argCount() const { return subExprCount(); }
+    String name() const { return m_name; }
 
-        Function* createFunction(const String& name);
-        Function* createFunction(const String& name, WillBeHeapVector<OwnPtrWillBeMember<Expression> >&);
+private:
+    String m_name;
+};
 
-    } // namespace XPath
+Function* createFunction(const String& name);
+Function* createFunction(const String& name, WillBeHeapVector<OwnPtrWillBeMember<Expression> >&);
+
+} // namespace XPath
 
 } // namespace WebCore
 
 #endif // XPathFunctions_h