Move most of the [Pass]RefPtr's of CSSPrimitiveValue to our transition types.

Source/core/css/CSSReflectValue.cpp

 /*
  * Copyright (C) 2008 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 37 matching lines @@
 
 bool CSSReflectValue::equals(const CSSReflectValue& other) const
 {
     return m_direction == other.m_direction
         && compareCSSValuePtr(m_offset, other.m_offset)
         && compareCSSValuePtr(m_mask, other.m_mask);
 }
 
 void CSSReflectValue::traceAfterDispatch(Visitor* visitor)
 {
+    visitor->trace(m_direction);
+    visitor->trace(m_offset);
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore