From 2c15639637cc9908751fee21019cf3c4a8c60732 Mon Sep 17 00:00:00 2001
From: Artem Strygin <art-snake@yandex-team.ru>
Date: Tue, 5 Jun 2018 13:18:58 +0000
Subject: Remove useless code.

Change-Id: I68bd9004cb034df749625f4c83072b08d33202e4
Reviewed-on: https://pdfium-review.googlesource.com/17730
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
---
 core/fpdfapi/parser/cpdf_data_avail.cpp | 18 +++++-------------
 core/fpdfapi/parser/cpdf_data_avail.h   |  4 +---
 2 files changed, 6 insertions(+), 16 deletions(-)

diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index 719169af72..f1a5d0c143 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -80,9 +80,8 @@ CPDF_DataAvail::CPDF_DataAvail(
     FileAvail* pFileAvail,
     const RetainPtr<IFX_SeekableReadStream>& pFileRead,
     bool bSupportHintTable)
-    : m_pFileAvail(pFileAvail),
-      m_pFileRead(
-          pdfium::MakeRetain<CPDF_ReadValidator>(pFileRead, m_pFileAvail)),
+    : m_pFileRead(
+          pdfium::MakeRetain<CPDF_ReadValidator>(pFileRead, pFileAvail)),
       m_dwFileLen(m_pFileRead->GetSize()),
       m_bSupportHintTable(bSupportHintTable) {}
 
@@ -201,7 +200,6 @@ bool CPDF_DataAvail::CheckAndLoadAllXref() {
 
   m_dwRootObjNum = m_parser.GetRootObjNum();
   m_dwInfoObjNum = m_parser.GetInfoObjNum();
-  m_pCurrentParser = &m_parser;
   m_docStatus = PDF_DATAAVAIL_ROOT;
   return true;
 }
@@ -287,7 +285,6 @@ bool CPDF_DataAvail::PreparePageItem() {
   }
 
   m_PagesObjNum = pRef->GetRefObjNum();
-  m_pCurrentParser = m_pDocument->GetParser();
   m_docStatus = PDF_DATAAVAIL_PAGETREE;
   return true;
 }
@@ -334,7 +331,7 @@ bool CPDF_DataAvail::CheckPage() {
   size_t iPages = m_PagesArray.size();
   for (size_t i = 0; i < iPages; ++i) {
     std::unique_ptr<CPDF_Object> pPages = std::move(m_PagesArray[i]);
-    if (pPages && !GetPageKids(m_pCurrentParser, pPages.get())) {
+    if (pPages && !GetPageKids(pPages.get())) {
       m_PagesArray.clear();
       m_docStatus = PDF_DATAAVAIL_ERROR;
       return false;
@@ -347,12 +344,7 @@ bool CPDF_DataAvail::CheckPage() {
   return true;
 }
 
-bool CPDF_DataAvail::GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages) {
-  if (!pParser) {
-    m_docStatus = PDF_DATAAVAIL_ERROR;
-    return false;
-  }
-
+bool CPDF_DataAvail::GetPageKids(CPDF_Object* pPages) {
   CPDF_Dictionary* pDict = pPages->GetDict();
   CPDF_Object* pKids = pDict ? pDict->GetObjectFor("Kids") : nullptr;
   if (!pKids)
@@ -393,7 +385,7 @@ bool CPDF_DataAvail::CheckPages() {
     return false;
   }
 
-  if (!GetPageKids(m_pCurrentParser, pPages.get())) {
+  if (!GetPageKids(pPages.get())) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
diff --git a/core/fpdfapi/parser/cpdf_data_avail.h b/core/fpdfapi/parser/cpdf_data_avail.h
index 2a0705d33d..08bb77a23f 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.h
+++ b/core/fpdfapi/parser/cpdf_data_avail.h
@@ -142,7 +142,7 @@ class CPDF_DataAvail final {
       CPDF_IndirectObjectHolder* pObjList = nullptr) const;
   std::unique_ptr<CPDF_Object> GetObject(uint32_t objnum,
                                          bool* pExistInFile);
-  bool GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages);
+  bool GetPageKids(CPDF_Object* pPages);
   bool PreparePageItem();
   bool LoadPages();
   bool CheckAndLoadAllXref();
@@ -164,7 +164,6 @@ class CPDF_DataAvail final {
   bool ValidatePage(uint32_t dwPage) const;
   CPDF_SyntaxParser* GetSyntaxParser() const;
 
-  FileAvail* const m_pFileAvail;
   RetainPtr<CPDF_ReadValidator> m_pFileRead;
   CPDF_Parser m_parser;
   std::unique_ptr<CPDF_Object> m_pRoot;
@@ -192,7 +191,6 @@ class CPDF_DataAvail final {
   PageNode m_PageNode;
   std::set<uint32_t> m_pageMapCheckState;
   std::set<uint32_t> m_pagesLoadState;
-  std::set<uint32_t> m_SeenPrevPositions;
   std::unique_ptr<CPDF_HintTables> m_pHintTables;
   const bool m_bSupportHintTable;
   std::map<uint32_t, std::unique_ptr<CPDF_PageObjectAvail>> m_PagesObjAvail;
-- 
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