Remove more oilpan.

sky/engine/core/css/CSSFontFace.h

 /*
  * Copyright (C) 2007, 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 25 matching lines @@
 
 namespace blink {
 
 class CSSFontSelector;
 class Document;
 class FontDescription;
 class RemoteFontFaceSource;
 class SimpleFontData;
 class StyleRuleFontFace;
 
-class CSSFontFace final : public DummyBase<CSSFontFace> {
+class CSSFontFace final {
 public:
     struct UnicodeRange;
     class UnicodeRangeSet;
 
     CSSFontFace(FontFace* fontFace, Vector<UnicodeRange>& ranges)
         : m_ranges(ranges)
         , m_segmentedFontFace(nullptr)
         , m_fontFace(fontFace)
     {
         ASSERT(m_fontFace);
@@ skipping 60 matching lines @@
 
     UnicodeRangeSet m_ranges;
     RawPtr<CSSSegmentedFontFace> m_segmentedFontFace;
     Deque<OwnPtr<CSSFontFaceSource> > m_sources;
     RawPtr<FontFace> m_fontFace;
 };
 
 }
 
 #endif