Remove useless code.

Change-Id: Id355fd03da476674181bae479ccebe50059dfa4f
Reviewed-on: https://pdfium-review.googlesource.com/15511
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>

2 files changed, 0 insertions, 119 deletions

diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index e50a7f6369..4259d731cc 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -82,10 +82,7 @@ CPDF_DataAvail::CPDF_DataAvail(
     : m_pFileAvail(pFileAvail) {
   ASSERT(pFileRead);
   m_pFileRead = pdfium::MakeRetain<CPDF_ReadValidator>(pFileRead, m_pFileAvail);
-  m_Pos = 0;
   m_dwFileLen = m_pFileRead->GetSize();
-  m_bufferOffset = 0;
-  m_bufferSize = 0;
   m_PagesObjNum = 0;
   m_dwInfoObjNum = 0;
   m_pDocument = 0;
@@ -96,7 +93,6 @@ CPDF_DataAvail::CPDF_DataAvail(
   m_bPagesLoad = false;
   m_bPagesTreeLoad = false;
   m_bMainXRefLoadedOK = false;
-  m_pTrailer = nullptr;
   m_pCurrentParser = nullptr;
   m_docStatus = PDF_DATAAVAIL_HEADER;
   m_bTotalLoadPageTree = false;
@@ -260,8 +256,6 @@ bool CPDF_DataAvail::CheckInfo() {
       m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
       return true;
     }
-    if (m_Pos == m_dwFileLen)
-      m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
   m_docStatus = PDF_DATAAVAIL_PAGETREE;
@@ -547,109 +541,6 @@ CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::CheckHeaderAndLinearized() {
   return DocAvailStatus::DataAvailable;
 }
 
-bool CPDF_DataAvail::GetNextToken(ByteString* token) {
-  uint8_t ch;
-  if (!GetNextChar(ch))
-    return false;
-
-  while (1) {
-    while (PDFCharIsWhitespace(ch)) {
-      if (!GetNextChar(ch))
-        return false;
-    }
-
-    if (ch != '%')
-      break;
-
-    while (1) {
-      if (!GetNextChar(ch))
-        return false;
-      if (PDFCharIsLineEnding(ch))
-        break;
-    }
-  }
-
-  uint8_t buffer[256];
-  uint32_t index = 0;
-  if (PDFCharIsDelimiter(ch)) {
-    buffer[index++] = ch;
-    if (ch == '/') {
-      while (1) {
-        if (!GetNextChar(ch))
-          return false;
-
-        if (!PDFCharIsOther(ch) && !PDFCharIsNumeric(ch)) {
-          m_Pos--;
-          *token = ByteString(buffer, index);
-          return true;
-        }
-        if (index < sizeof(buffer))
-          buffer[index++] = ch;
-      }
-    } else if (ch == '<') {
-      if (!GetNextChar(ch))
-        return false;
-
-      if (ch == '<')
-        buffer[index++] = ch;
-      else
-        m_Pos--;
-    } else if (ch == '>') {
-      if (!GetNextChar(ch))
-        return false;
-
-      if (ch == '>')
-        buffer[index++] = ch;
-      else
-        m_Pos--;
-    }
-    *token = ByteString(buffer, index);
-    return true;
-  }
-
-  while (1) {
-    if (index < sizeof(buffer))
-      buffer[index++] = ch;
-
-    if (!GetNextChar(ch))
-      return false;
-
-    if (PDFCharIsDelimiter(ch) || PDFCharIsWhitespace(ch)) {
-      m_Pos--;
-      break;
-    }
-  }
-
-  *token = ByteString(buffer, index);
-  return true;
-}
-
-bool CPDF_DataAvail::GetNextChar(uint8_t& ch) {
-  FX_FILESIZE pos = m_Pos;
-  if (pos >= m_dwFileLen)
-    return false;
-
-  if (m_bufferOffset >= pos ||
-      (FX_FILESIZE)(m_bufferOffset + m_bufferSize) <= pos) {
-    FX_FILESIZE read_pos = pos;
-    uint32_t read_size = 512;
-    if ((FX_FILESIZE)read_size > m_dwFileLen)
-      read_size = (uint32_t)m_dwFileLen;
-
-    if ((FX_FILESIZE)(read_pos + read_size) > m_dwFileLen)
-      read_pos = m_dwFileLen - read_size;
-
-    if (!m_pFileRead->ReadBlock(m_bufferData, read_pos, read_size))
-      return false;
-
-    m_bufferOffset = read_pos;
-    m_bufferSize = read_size;
-  }
-  ch = m_bufferData[pos - m_bufferOffset];
-  m_Pos++;
-  return true;
-}
-
 bool CPDF_DataAvail::CheckPage(uint32_t dwPage) {
   while (true) {
     switch (m_docStatus) {
diff --git a/core/fpdfapi/parser/cpdf_data_avail.h b/core/fpdfapi/parser/cpdf_data_avail.h
index aaf3250f3a..8916088556 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.h
+++ b/core/fpdfapi/parser/cpdf_data_avail.h
@@ -133,9 +133,6 @@ class CPDF_DataAvail final {
   bool CheckPageStatus();
 
   DocAvailStatus CheckHeaderAndLinearized();
-  void SetStartOffset(FX_FILESIZE dwOffset);
-  bool GetNextToken(ByteString* token);
-  bool GetNextChar(uint8_t& ch);
   std::unique_ptr<CPDF_Object> ParseIndirectObjectAt(
       FX_FILESIZE pos,
       uint32_t objnum,
@@ -171,18 +168,11 @@ class CPDF_DataAvail final {
   uint32_t m_dwRootObjNum;
   uint32_t m_dwInfoObjNum;
   std::unique_ptr<CPDF_LinearizedHeader> m_pLinearized;
-  UnownedPtr<CPDF_Object> m_pTrailer;
   bool m_bDocAvail;
   std::unique_ptr<CPDF_CrossRefAvail> m_pCrossRefAvail;
   PDF_DATAAVAIL_STATUS m_docStatus;
   FX_FILESIZE m_dwFileLen;
   CPDF_Document* m_pDocument;
-  FX_FILESIZE m_Pos;
-  FX_FILESIZE m_bufferOffset;
-  uint32_t m_bufferSize;
-  ByteString m_WordBuf;
-  uint8_t m_bufferData[512];
-  std::vector<uint32_t> m_XRefStreamList;
   std::vector<uint32_t> m_PageObjList;
   uint32_t m_PagesObjNum;
   bool m_bLinearedDataOK;