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diff --git a/core/fpdfapi/page/cpdf_textstate.h b/core/fpdfapi/page/cpdf_textstate.h
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+++ b/core/fpdfapi/page/cpdf_textstate.h
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+// 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_PAGE_CPDF_TEXTSTATE_H_
+#define CORE_FPDFAPI_PAGE_CPDF_TEXTSTATE_H_
+
+#include "core/fxcrt/cfx_count_ref.h"
+#include "core/fxcrt/fx_basic.h"
+
+class CPDF_Document;
+class CPDF_Font;
+
+// See PDF Reference 1.7, page 402, table 5.3.
+enum class TextRenderingMode {
+  MODE_FILL = 0,
+  MODE_STROKE = 1,
+  MODE_FILL_STROKE = 2,
+  MODE_INVISIBLE = 3,
+  MODE_FILL_CLIP = 4,
+  MODE_STROKE_CLIP = 5,
+  MODE_FILL_STROKE_CLIP = 6,
+  MODE_CLIP = 7,
+};
+
+class CPDF_TextState {
+ public:
+  CPDF_TextState();
+  ~CPDF_TextState();
+
+  void Emplace();
+
+  CPDF_Font* GetFont() const;
+  void SetFont(CPDF_Font* pFont);
+
+  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:
+  class TextData {
+   public:
+    TextData();
+    TextData(const TextData& src);
+    ~TextData();
+
+    void SetFont(CPDF_Font* pFont);
+    FX_FLOAT GetFontSizeV() const;
+    FX_FLOAT GetFontSizeH() const;
+    FX_FLOAT GetBaselineAngle() const;
+    FX_FLOAT GetShearAngle() const;
+
+    CPDF_Font* m_pFont;
+    CPDF_Document* m_pDocument;
+    FX_FLOAT m_FontSize;
+    FX_FLOAT m_CharSpace;
+    FX_FLOAT m_WordSpace;
+    TextRenderingMode m_TextMode;
+    FX_FLOAT m_Matrix[4];
+    FX_FLOAT m_CTM[4];
+  };
+
+  CFX_CountRef<TextData> m_Ref;
+};
+
+bool SetTextRenderingModeFromInt(int iMode, TextRenderingMode* mode);
+bool TextRenderingModeIsClipMode(const TextRenderingMode& mode);
+bool TextRenderingModeIsStrokeMode(const TextRenderingMode& mode);
+
+#endif  // CORE_FPDFAPI_PAGE_CPDF_TEXTSTATE_H_