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

xfa/fde/css/fde_csssyntax.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_CSSSYNTAX_H_
 #define XFA_FDE_CSS_FDE_CSSSYNTAX_H_
 
 #include "xfa/fde/css/fde_css.h"
@@ skipping 59 matching lines @@
   FDE_CSSSYNTAXMODE_URI,
   FDE_CSSSYNTAXMODE_MediaType,
   FDE_CSSSYNTAXMODE_Selector,
   FDE_CSSSYNTAXMODE_PropertyName,
   FDE_CSSSYNTAXMODE_PropertyValue,
 };
 
 class CFDE_CSSSyntaxParser : public CFX_Target {
  public:
   CFDE_CSSSyntaxParser();
-  ~CFDE_CSSSyntaxParser();
+  ~CFDE_CSSSyntaxParser() override;
 
-  void Release() { delete this; }
   FX_BOOL Init(IFX_Stream* pStream,
                int32_t iCSSPlaneSize,
                int32_t iTextDataSize = 32,
                FX_BOOL bOnlyDeclaration = FALSE);
   FX_BOOL Init(const FX_WCHAR* pBuffer,
                int32_t iBufferSize,
                int32_t iTextDatSize = 32,
                FX_BOOL bOnlyDeclaration = FALSE);
   FDE_CSSSYNTAXSTATUS DoSyntaxParse();
   const FX_WCHAR* GetCurrentString(int32_t& iLength) const;
@@ skipping 19 matching lines @@
   CFDE_CSSTextBuf m_TextData;
   CFDE_CSSTextBuf m_TextPlane;
   int32_t m_iTextDatLen;
   uint32_t m_dwCheck;
   FDE_CSSSYNTAXMODE m_eMode;
   FDE_CSSSYNTAXSTATUS m_eStatus;
   CFX_StackTemplate<FDE_CSSSYNTAXMODE> m_ModeStack;
 };
 
 #endif  // XFA_FDE_CSS_FDE_CSSSYNTAX_H_