Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/parser/CSSVariableParser.cpp

 // 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.
 
 #include "core/css/parser/CSSVariableParser.h"
 
 #include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/parser/CSSParserTokenRange.h"
 #include "core/css/parser/CSSParserValues.h"
 
@@ skipping 91 matching lines @@
     return CSSValueInvalid;
 }
 
 bool CSSVariableParser::containsValidVariableReferences(CSSParserTokenRange range)
 {
     bool hasReferences;
     CSSValueID type = classifyVariableRange(range, hasReferences);
     return type == CSSValueInternalVariableValue && hasReferences;
 }
 
-PassRefPtrWillBeRawPtr<CSSCustomPropertyDeclaration> CSSVariableParser::parseDeclarationValue(const AtomicString& variableName, CSSParserTokenRange range)
+RawPtr<CSSCustomPropertyDeclaration> CSSVariableParser::parseDeclarationValue(const AtomicString& variableName, CSSParserTokenRange range)
 {
     if (range.atEnd())
         return nullptr;
 
     bool hasReferences;
     CSSValueID type = classifyVariableRange(range, hasReferences);
 
     if (type == CSSValueInvalid)
         return nullptr;
     if (type == CSSValueInternalVariableValue)
         return CSSCustomPropertyDeclaration::create(variableName, CSSVariableData::create(range, hasReferences));
     return CSSCustomPropertyDeclaration::create(variableName, type);
 }
 
 } // namespace blink