Use unsigned page indexes in CPDF_HintTables.

core/fpdfapi/fpdf_parser/include/cpdf_data_avail.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_PARSER_INCLUDE_CPDF_DATA_AVAIL_H_
 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DATA_AVAIL_H_
 
 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h"
@@ skipping 79 matching lines @@
     virtual void AddSegment(FX_FILESIZE offset, uint32_t size) = 0;
   };
 
   CPDF_DataAvail(FileAvail* pFileAvail,
                  IFX_FileRead* pFileRead,
                  FX_BOOL bSupportHintTable);
   ~CPDF_DataAvail();
 
   DocAvailStatus IsDocAvail(DownloadHints* pHints);
   void SetDocument(CPDF_Document* pDoc);
-  DocAvailStatus IsPageAvail(int iPage, DownloadHints* pHints);
+  DocAvailStatus IsPageAvail(uint32_t dwPage, DownloadHints* pHints);
   DocFormStatus IsFormAvail(DownloadHints* pHints);
   DocLinearizationStatus IsLinearizedPDF();
   FX_BOOL IsLinearized();
   void GetLinearizedMainXRefInfo(FX_FILESIZE* pPos, uint32_t* pSize);
   IFX_FileRead* GetFileRead() const { return m_pFileRead; }
   int GetPageCount() const;
   CPDF_Dictionary* GetPage(int index);
 
   friend class CPDF_HintTables;
 
@@ skipping 48 matching lines @@
       CPDF_IndirectObjectHolder* pObjList = nullptr);
   CPDF_Object* GetObject(uint32_t objnum,
                          DownloadHints* pHints,
                          FX_BOOL* pExistInFile);
   FX_BOOL GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages);
   FX_BOOL PreparePageItem();
   FX_BOOL LoadPages(DownloadHints* pHints);
   FX_BOOL LoadAllXref(DownloadHints* pHints);
   FX_BOOL LoadAllFile(DownloadHints* pHints);
   DocAvailStatus CheckLinearizedData(DownloadHints* pHints);
-  FX_BOOL CheckPageAnnots(int iPage, DownloadHints* pHints);
+  FX_BOOL CheckPageAnnots(uint32_t dwPage, DownloadHints* pHints);
 
-  DocAvailStatus CheckLinearizedFirstPage(int iPage, DownloadHints* pHints);
+  DocAvailStatus CheckLinearizedFirstPage(uint32_t dwPage,
+                                          DownloadHints* pHints);
   FX_BOOL HaveResourceAncestor(CPDF_Dictionary* pDict);
-  FX_BOOL CheckPage(int32_t iPage, DownloadHints* pHints);
+  FX_BOOL CheckPage(uint32_t dwPage, DownloadHints* pHints);
   FX_BOOL LoadDocPages(DownloadHints* pHints);
-  FX_BOOL LoadDocPage(int32_t iPage, DownloadHints* pHints);
+  FX_BOOL LoadDocPage(uint32_t dwPage, DownloadHints* pHints);
   FX_BOOL CheckPageNode(PageNode& pageNodes,
                         int32_t iPage,
                         int32_t& iCount,
                         DownloadHints* pHints,
                         int level);
   FX_BOOL CheckUnkownPageNode(uint32_t dwPageNo,
                               PageNode* pPageNode,
                               DownloadHints* pHints);
   FX_BOOL CheckArrayPageNode(uint32_t dwPageNo,
                              PageNode* pPageNode,
                              DownloadHints* pHints);
   FX_BOOL CheckPageCount(DownloadHints* pHints);
-  bool IsFirstCheck(int iPage);
-  void ResetFirstCheck(int iPage);
+  bool IsFirstCheck(uint32_t dwPage);
+  void ResetFirstCheck(uint32_t dwPage);
   FX_BOOL IsDataAvail(FX_FILESIZE offset, uint32_t size, DownloadHints* pHints);
 
   FileAvail* const m_pFileAvail;
   IFX_FileRead* const m_pFileRead;
   CPDF_Parser m_parser;
   CPDF_SyntaxParser m_syntaxParser;
   CPDF_Object* m_pRoot;
   uint32_t m_dwRootObjNum;
   uint32_t m_dwInfoObjNum;
   CPDF_Object* m_pLinearized;
@@ skipping 43 matching lines @@
   FX_BOOL m_bTotalLoadPageTree;
   FX_BOOL m_bCurPageDictLoadOK;
   PageNode m_pageNodes;
   std::set<uint32_t> m_pageMapCheckState;
   std::set<uint32_t> m_pagesLoadState;
   std::unique_ptr<CPDF_HintTables> m_pHintTables;
   FX_BOOL m_bSupportHintTable;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_DATA_AVAIL_H_