Use string pools in some dictionaries

core/fpdfapi/fpdf_page/pageint.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 CORE_FPDFAPI_FPDF_PAGE_PAGEINT_H_
 #define CORE_FPDFAPI_FPDF_PAGE_PAGEINT_H_
 
 #include <map>
 #include <memory>
 #include <set>
 #include <unordered_map>
 #include <vector>
 
 #include "core/fpdfapi/fpdf_page/cpdf_contentmark.h"
 #include "core/fpdfapi/fpdf_page/cpdf_countedobject.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_pageobjectholder.h"
+#include "core/fxcrt/include/cfx_string_pool_template.h"
+#include "core/fxcrt/include/cfx_weak_ptr.h"
 #include "core/fxge/include/cfx_pathdata.h"
 #include "core/fxge/include/cfx_renderdevice.h"
 
 class CPDF_AllStates;
 class CPDF_ColorSpace;
 class CPDF_ExpIntFunc;
 class CPDF_Font;
 class CPDF_FontEncoding;
 class CPDF_Form;
 class CPDF_IccProfile;
 class CPDF_Image;
 class CPDF_ImageObject;
 class CPDF_Page;
 class CPDF_Pattern;
 class CPDF_SampledFunc;
 class CPDF_StitchFunc;
 class CPDF_StreamAcc;
 class CPDF_TextObject;
 class CPDF_Type3Char;
 
 #define PARSE_STEP_LIMIT 100
 
 class CPDF_StreamParser {
  public:
   enum SyntaxType { EndOfData, Number, Keyword, Name, Others };
 
   CPDF_StreamParser(const uint8_t* pData, uint32_t dwSize);
+  CPDF_StreamParser(const uint8_t* pData,
+                    uint32_t dwSize,
+                    const CFX_WeakPtr<CFX_ByteStringPool>& pPool);
   ~CPDF_StreamParser();
 
   CPDF_Stream* ReadInlineStream(CPDF_Document* pDoc,
                                 CPDF_Dictionary* pDict,
                                 CPDF_Object* pCSObj);
   SyntaxType ParseNextElement();
   uint8_t* GetWordBuf() { return m_WordBuffer; }
   uint32_t GetWordSize() const { return m_WordSize; }
   CPDF_Object* GetObject() {
     CPDF_Object* pObj = m_pLastObj;
     m_pLastObj = nullptr;
     return pObj;
   }
   uint32_t GetPos() const { return m_Pos; }
   void SetPos(uint32_t pos) { m_Pos = pos; }
   CPDF_Object* ReadNextObject(bool bAllowNestedArray, uint32_t dwInArrayLevel);
 
  protected:
   friend class fpdf_page_parser_old_ReadHexString_Test;
 
   void GetNextWord(FX_BOOL& bIsNumber);
   CFX_ByteString ReadString();
   CFX_ByteString ReadHexString();
+
   const uint8_t* m_pBuf;
-
-  // Length in bytes of m_pBuf.
-  uint32_t m_Size;
-
-  // Current byte position within m_pBuf.
-  uint32_t m_Pos;
-
+  uint32_t m_Size;  // Length in bytes of m_pBuf.
+  uint32_t m_Pos;   // Current byte position within m_pBuf.
   uint8_t m_WordBuffer[256];
   uint32_t m_WordSize;
   CPDF_Object* m_pLastObj;
+  CFX_WeakPtr<CFX_ByteStringPool> m_pPool;
 
  private:
   bool PositionIsInBounds() const;
 };
 
 #define PARAM_BUF_SIZE 16
 struct ContentParam {
   enum Type { OBJECT = 0, NUMBER, NAME };
   Type m_Type;
   union {
@@ skipping 465 matching lines @@
 };
 
 CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr);
 CFX_ByteStringC PDF_FindValueAbbreviationForTesting(
     const CFX_ByteStringC& abbr);
 
 void PDF_ReplaceAbbr(CPDF_Object* pObj);
 bool IsPathOperator(const uint8_t* buf, size_t len);
 
 #endif  // CORE_FPDFAPI_FPDF_PAGE_PAGEINT_H_