Replace some calls to Release() with direct delete, part 1.

xfa/fde/css/fde_cssstyleselector.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_CSSSTYLESELECTOR_H_
 #define XFA_FDE_CSS_FDE_CSSSTYLESELECTOR_H_
 
 #include <vector>
@@ skipping 75 matching lines @@
   CFX_MapPtrToPtr m_TagRules;
   CFX_MapPtrToPtr m_ClassRules;
   FDE_CSSRuleData* m_pUniversalRules;
   FDE_CSSRuleData* m_pPersudoRules;
   int32_t m_iSelectors;
 };
 
 class CFDE_CSSStyleSelector : public CFX_Target {
  public:
   CFDE_CSSStyleSelector();
-  ~CFDE_CSSStyleSelector();
-
-  void Release() { delete this; }
+  ~CFDE_CSSStyleSelector() override;
 
   void SetFontMgr(IFX_FontMgr* pFontMgr);
   void SetDefFontSize(FX_FLOAT fFontSize);
 
   FX_BOOL SetStyleSheet(FDE_CSSSTYLESHEETGROUP eType,
                         IFDE_CSSStyleSheet* pSheet);
   FX_BOOL SetStyleSheets(FDE_CSSSTYLESHEETGROUP eType,
                          const CFDE_CSSStyleSheetArray* pArray);
   void SetStylePriority(FDE_CSSSTYLESHEETGROUP eType,
                         FDE_CSSSTYLESHEETPRIORITY ePriority);
@@ skipping 471 matching lines @@
   }
 
   uint32_t m_dwRefCount;
   IFX_MemoryAllocator* m_pAllocator;
   CFDE_CSSInheritedData m_InheritedData;
   CFDE_CSSNonInheritedData m_NonInheritedData;
   CFX_WideStringArray m_CustomProperties;
 };
 
 #endif  // XFA_FDE_CSS_FDE_CSSSTYLESELECTOR_H_