Remove more oilpan.

sky/engine/core/dom/StyleEngine.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 35 matching lines @@
 class CSSFontSelector;
 class CSSStyleSheet;
 class Node;
 class RuleFeatureSet;
 class ShadowTreeStyleSheetCollection;
 class StyleRuleFontFace;
 class StyleSheet;
 class StyleSheetContents;
 
 class StyleEngine final : public CSSFontSelectorClient  {
-    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
+    WTF_MAKE_FAST_ALLOCATED;
 public:
 
     class IgnoringPendingStylesheet : public TemporaryChange<bool> {
     public:
         IgnoringPendingStylesheet(StyleEngine* engine)
             : TemporaryChange<bool>(engine->m_ignorePendingStylesheets, true)
         {
         }
     };
 
@@ skipping 135 matching lines @@
 
     RefPtr<CSSFontSelector> m_fontSelector;
 
     HashMap<AtomicString, RawPtr<StyleSheetContents> > m_textToSheetCache;
     HashMap<RawPtr<StyleSheetContents>, AtomicString> m_sheetToTextCache;
 };
 
 }
 
 #endif