Remove RawPtr from core/css

third_party/WebKit/Source/core/css/CSSNamespaceRule.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #ifndef CSSNamespaceRule_h
 #define CSSNamespaceRule_h
 
 #include "core/css/CSSRule.h"
 
 namespace blink {
 
 class StyleRuleNamespace;
 
 class CSSNamespaceRule final : public CSSRule {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static RawPtr<CSSNamespaceRule> create(StyleRuleNamespace* rule, CSSStyleSheet* sheet)
+    static CSSNamespaceRule* create(StyleRuleNamespace* rule, CSSStyleSheet* sheet)
     {
         return new CSSNamespaceRule(rule, sheet);
     }
 
     ~CSSNamespaceRule() override;
 
     String cssText() const override;
     void reattach(StyleRuleBase*) override { }
 
     AtomicString namespaceURI() const;
     AtomicString prefix() const;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     CSSNamespaceRule(StyleRuleNamespace*, CSSStyleSheet*);
 
     CSSRule::Type type() const override { return NAMESPACE_RULE; }
 
     Member<StyleRuleNamespace> m_namespaceRule;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSNamespaceRule, NAMESPACE_RULE);
 
 } // namespace blink
 
 #endif // CSSNamespaceRule_h