Pass around CSSSelector by reference instead of pointer

Source/core/css/CSSStyleRule.cpp

Index: Source/core/css/CSSStyleRule.cpp
diff --git a/Source/core/css/CSSStyleRule.cpp b/Source/core/css/CSSStyleRule.cpp
index 7fd4f9f46d345a2ec1c6f9267393c6e4c3563397..3dac28b3c3d0904c2f8bfd4f01f417cf8d6d7236 100644
--- a/Source/core/css/CSSStyleRule.cpp
+++ b/Source/core/css/CSSStyleRule.cpp
@@ -67,7 +67,7 @@ CSSStyleDeclaration* CSSStyleRule::style() const
 String CSSStyleRule::generateSelectorText() const
 {
     StringBuilder builder;
-    for (const CSSSelector* selector = m_styleRule->selectorList().first(); selector; selector = CSSSelectorList::next(selector)) {
+    for (const CSSSelector* selector = m_styleRule->selectorList().first(); selector; selector = CSSSelectorList::next(*selector)) {
         if (selector != m_styleRule->selectorList().first())
             builder.append(", ");
         builder.append(selector->selectorText());