Make CPDF_TextState have a CPDF_TextStateData rather than inheriting one.

core/fpdfapi/fpdf_page/cpdf_textstate.h

 // Copyright 2016 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 CORE_FPDFAPI_FPDF_PAGE_CPDF_TEXTSTATE_H_
 #define CORE_FPDFAPI_FPDF_PAGE_CPDF_TEXTSTATE_H_
 
 #include "core/fpdfapi/fpdf_page/include/cpdf_textstatedata.h"
+#include "core/fxcrt/include/cfx_count_ref.h"
 #include "core/fxcrt/include/fx_basic.h"
 
 class CPDF_Font;
 
-class CPDF_TextState : public CFX_CountRef<CPDF_TextStateData> {
+class CPDF_TextState {
  public:
-  CPDF_Font* GetFont() const { return GetObject()->m_pFont; }
+  CPDF_TextState();
+  ~CPDF_TextState();
+
+  void Emplace();
+
+  CPDF_Font* GetFont() const;
   void SetFont(CPDF_Font* pFont);
 
-  FX_FLOAT GetFontSize() const { return GetObject()->m_FontSize; }
-  const FX_FLOAT* GetMatrix() const { return GetObject()->m_Matrix; }
-  FX_FLOAT* GetMutableMatrix() { return GetPrivateCopy()->m_Matrix; }
+  FX_FLOAT GetFontSize() const;
+  void SetFontSize(FX_FLOAT size);
+
+  const FX_FLOAT* GetMatrix() const;
+  FX_FLOAT* GetMutableMatrix();
+
+  FX_FLOAT GetCharSpace() const;
+  void SetCharSpace(FX_FLOAT sp);
+
+  FX_FLOAT GetWordSpace() const;
+  void SetWordSpace(FX_FLOAT sp);
 
   FX_FLOAT GetFontSizeV() const;
   FX_FLOAT GetFontSizeH() const;
   FX_FLOAT GetBaselineAngle() const;
   FX_FLOAT GetShearAngle() const;
+
+  TextRenderingMode GetTextMode() const;
+  void SetTextMode(TextRenderingMode mode);
+
+  const FX_FLOAT* GetCTM() const;
+  FX_FLOAT* GetMutableCTM();
+
+ private:
+  CFX_CountRef<CPDF_TextStateData> m_Ref;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_PAGE_CPDF_TEXTSTATE_H_