Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/resolver/MatchResult.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 23 matching lines @@
 class StylePropertySet;
 
 struct CORE_EXPORT MatchedProperties {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 public:
     MatchedProperties();
     ~MatchedProperties();
 
     DECLARE_TRACE();
 
-    RefPtrWillBeMember<StylePropertySet> properties;
+    Member<StylePropertySet> properties;
 
     union {
         struct {
             unsigned linkMatchType : 2;
             unsigned whitelistType : 2;
         } m_types;
         // Used to make sure all memory is zero-initialized since we compute the hash over the bytes of this object.
         void* possiblyPaddedMember;
     };
 };
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::MatchedProperties);
 
 namespace blink {
 
-using MatchedPropertiesVector = WillBeHeapVector<MatchedProperties, 64>;
+using MatchedPropertiesVector = HeapVector<MatchedProperties, 64>;
 
 // MatchedPropertiesRange is used to represent a subset of the matched properties from
 // a given origin, for instance UA rules, author rules, or a shadow tree scope. This is
 // needed because rules from different origins are applied in the opposite order for
 // !important rules, yet in the same order as for normal rules within the same origin.
 
 class MatchedPropertiesRange {
 public:
     MatchedPropertiesRange(MatchedPropertiesVector::const_iterator begin, MatchedPropertiesVector::const_iterator end)
         : m_begin(begin)
@@ skipping 85 matching lines @@
 }
 
 inline bool operator!=(const MatchedProperties& a, const MatchedProperties& b)
 {
     return !(a == b);
 }
 
 } // namespace blink
 
 #endif // MatchResult_h