Fix style erros in XPath-related files.

Source/core/xml/XPathUtil.h

Index: Source/core/xml/XPathUtil.h
diff --git a/Source/core/xml/XPathUtil.h b/Source/core/xml/XPathUtil.h
index 9db3314ec9df3f04cc0f5ec5eabd3c8a6f5fdc4f..aacec1790f46a7a41dffa8741e44da12f542641d 100644
--- a/Source/core/xml/XPathUtil.h
+++ b/Source/core/xml/XPathUtil.h
@@ -32,21 +32,20 @@
 
 namespace WebCore {
 
-    class Node;
+class Node;
 
-    namespace XPath {
+namespace XPath {
 
-        /* @return whether the given node is the root node */
-        bool isRootDomNode(Node*);
+// @return whether the given node is the root node
+bool isRootDomNode(Node*);
 
-        /* @return the 'string-value' of the given node as specified by http://www.w3.org/TR/xpath */
-        String stringValue(Node*);
+// @return the 'string-value' of the given node as specified by http://www.w3.org/TR/xpath
+String stringValue(Node*);
 
-        /* @return whether the given node is a valid context node */
-        bool isValidContextNode(Node*);
-
-    }
+// @return whether the given node is a valid context node
+bool isValidContextNode(Node*);
 
 }
 
-#endif // XPath_Util_H
+}
+#endif // XPathUtil_h