Cleaning up FDE_CSS Classes.

xfa/fde/css/fde_csscache.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FDE_CSS_FDE_CSSCACHE_H_
 #define XFA_FDE_CSS_FDE_CSSCACHE_H_
 
 #include <map>
@@ skipping 53 matching lines @@
  protected:
   IFDE_CSSTagProvider* pTag;
   FDE_CSSTagCache* pParent;
   uint32_t dwIDHash;
   uint32_t dwTagHash;
   int32_t iClassIndex;
   CFDE_DWordArray dwClassHashs;
 };
 typedef CFX_ObjectStackTemplate<FDE_CSSTagCache> CFDE_CSSTagStack;
 
-class CFDE_CSSAccelerator : public IFDE_CSSAccelerator, public CFX_Target {
+class CFDE_CSSAccelerator : public CFX_Target {
  public:
-  virtual void OnEnterTag(IFDE_CSSTagProvider* pTag);
-  virtual void OnLeaveTag(IFDE_CSSTagProvider* pTag);
+  void OnEnterTag(IFDE_CSSTagProvider* pTag);
+  void OnLeaveTag(IFDE_CSSTagProvider* pTag);
+
   void Clear() { m_Stack.RemoveAll(); }
+
   FDE_CSSTagCache* GetTopElement() const { return m_Stack.GetTopElement(); }
 
  protected:
   CFDE_CSSTagStack m_Stack;
 };
 
 #endif  // XFA_FDE_CSS_FDE_CSSCACHE_H_