Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/CSSURIValue.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 CSSURIValue_h
 #define CSSURIValue_h
 
 #include "core/css/CSSValue.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class CSSURIValue : public CSSValue {
 public:
-    static PassRefPtrWillBeRawPtr<CSSURIValue> create(const String& str)
+    static RawPtr<CSSURIValue> create(const String& str)
     {
-        return adoptRefWillBeNoop(new CSSURIValue(str));
+        return new CSSURIValue(str);
     }
 
     String value() const { return m_string; }
 
     String customCSSText() const;
 
     bool equals(const CSSURIValue& other) const
     {
         return m_string == other.m_string;
     }
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
 private:
     CSSURIValue(const String&);
 
     String m_string;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSURIValue, isURIValue());
 
 } // namespace blink
 
 #endif // CSSURIValue_h