Oilpan: Remove most WillBe types from the code base

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

Index: third_party/WebKit/Source/core/css/CSSProperty.h
diff --git a/third_party/WebKit/Source/core/css/CSSProperty.h b/third_party/WebKit/Source/core/css/CSSProperty.h
index 45e3694257742d25184c6b79d6f5ba21b8b22051..d2f2f4f6bbaf6cc5caaad94bef0465f430533708 100644
--- a/third_party/WebKit/Source/core/css/CSSProperty.h
+++ b/third_party/WebKit/Source/core/css/CSSProperty.h
@@ -58,7 +58,7 @@ struct StylePropertyMetadata {
 class CSSProperty {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 public:
-    CSSProperty(CSSPropertyID propertyID, PassRefPtrWillBeRawPtr<CSSValue> value, bool important = false, bool isSetFromShorthand = false, int indexInShorthandsVector = 0, bool implicit = false)
+    CSSProperty(CSSPropertyID propertyID, RawPtr<CSSValue> value, bool important = false, bool isSetFromShorthand = false, int indexInShorthandsVector = 0, bool implicit = false)
         : m_metadata(propertyID, isSetFromShorthand, indexInShorthandsVector, important, implicit, CSSPropertyMetadata::isInheritedProperty(propertyID))
         , m_value(value)
     {
@@ -89,7 +89,7 @@ public:
 
 private:
     StylePropertyMetadata m_metadata;
-    RefPtrWillBeMember<CSSValue> m_value;
+    Member<CSSValue> m_value;
 };
 
 } // namespace blink