From 280862f53a182928c5a9702784bb25f60a6eff08 Mon Sep 17 00:00:00 2001
From: Henrique Nakashima <hnakashima@chromium.org>
Date: Fri, 8 Jun 2018 19:18:37 +0000
Subject: Remove CPDF_Creator::InitOldObjNumOffsets(). It does nothing.

This method is called, but it returns void and has no side effects:
all called methods are const, and no member or static variable is
modified.

Change-Id: I12084000621728b9994fe7b487852928e7b1180e
Reviewed-on: https://pdfium-review.googlesource.com/34690
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
---
 core/fpdfapi/edit/cpdf_creator.cpp | 25 -------------------------
 core/fpdfapi/edit/cpdf_creator.h   |  1 -
 2 files changed, 26 deletions(-)

diff --git a/core/fpdfapi/edit/cpdf_creator.cpp b/core/fpdfapi/edit/cpdf_creator.cpp
index d386217f23..1935c7362f 100644
--- a/core/fpdfapi/edit/cpdf_creator.cpp
+++ b/core/fpdfapi/edit/cpdf_creator.cpp
@@ -346,27 +346,6 @@ bool CPDF_Creator::WriteNewObjs() {
   return true;
 }
 
-void CPDF_Creator::InitOldObjNumOffsets() {
-  if (!m_pParser)
-    return;
-
-  uint32_t dwStart = 0;
-  uint32_t dwEnd = m_pParser->GetLastObjNum();
-  while (dwStart <= dwEnd) {
-    while (dwStart <= dwEnd && m_pParser->IsObjectFreeOrNull(dwStart))
-      dwStart++;
-
-    if (dwStart > dwEnd)
-      break;
-
-    uint32_t j = dwStart;
-    while (j <= dwEnd && !m_pParser->IsObjectFreeOrNull(j))
-      j++;
-
-    dwStart = j;
-  }
-}
-
 void CPDF_Creator::InitNewObjNumOffsets() {
   for (const auto& pair : *m_pDocument) {
     const uint32_t objnum = pair.first;
@@ -411,8 +390,6 @@ int32_t CPDF_Creator::WriteDoc_Stage1() {
           !m_Archive->WriteString("\r\n%\xA1\xB3\xC5\xD7\r\n")) {
         return -1;
       }
-
-      InitOldObjNumOffsets();
       m_iStage = 20;
     } else {
       m_SavedOffset = m_pParser->GetFileAccess()->GetSize();
@@ -438,8 +415,6 @@ int32_t CPDF_Creator::WriteDoc_Stage1() {
       }
     }
     if (IsOriginal() && m_pParser->GetLastXRefOffset() == 0) {
-      InitOldObjNumOffsets();
-
       for (uint32_t num = 0; num <= m_pParser->GetLastObjNum(); ++num) {
         if (m_pParser->IsObjectFreeOrNull(num))
           continue;
diff --git a/core/fpdfapi/edit/cpdf_creator.h b/core/fpdfapi/edit/cpdf_creator.h
index f95cab44eb..2b36fdd136 100644
--- a/core/fpdfapi/edit/cpdf_creator.h
+++ b/core/fpdfapi/edit/cpdf_creator.h
@@ -61,7 +61,6 @@ class CPDF_Creator {
  private:
   void Clear();
 
-  void InitOldObjNumOffsets();
   void InitNewObjNumOffsets();
   void InitID();
 
-- 
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