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diff --git a/core/fpdfapi/render/cpdf_type3cache.h b/core/fpdfapi/render/cpdf_type3cache.h
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+++ b/core/fpdfapi/render/cpdf_type3cache.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_RENDER_CPDF_TYPE3CACHE_H_
+#define CORE_FPDFAPI_RENDER_CPDF_TYPE3CACHE_H_
+
+#include <map>
+
+#include "core/fpdfapi/font/cpdf_type3font.h"
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxcrt/fx_string.h"
+#include "core/fxcrt/fx_system.h"
+
+class CPDF_Type3Glyphs;
+
+class CPDF_Type3Cache {
+ public:
+  explicit CPDF_Type3Cache(CPDF_Type3Font* pFont);
+  ~CPDF_Type3Cache();
+
+  CFX_GlyphBitmap* LoadGlyph(uint32_t charcode,
+                             const CFX_Matrix* pMatrix,
+                             FX_FLOAT retinaScaleX,
+                             FX_FLOAT retinaScaleY);
+
+ private:
+  CFX_GlyphBitmap* RenderGlyph(CPDF_Type3Glyphs* pSize,
+                               uint32_t charcode,
+                               const CFX_Matrix* pMatrix,
+                               FX_FLOAT retinaScaleX,
+                               FX_FLOAT retinaScaleY);
+
+  CPDF_Type3Font* const m_pFont;
+  std::map<CFX_ByteString, CPDF_Type3Glyphs*> m_SizeMap;
+};
+
+#endif  // CORE_FPDFAPI_RENDER_CPDF_TYPE3CACHE_H_