Reland "Remove CPDF_Object::Release() in favor of direct delete"

core/fpdfapi/parser/cpdf_data_avail.cpp

Index: core/fpdfapi/parser/cpdf_data_avail.cpp
diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index a077ebb7150fb386903b2566a4a364491e38e23c..eadbf1e8282c144c0e5f72c4f3783e18668bd033 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -83,17 +83,12 @@ CPDF_DataAvail::CPDF_DataAvail(FileAvail* pFileAvail,
 
 CPDF_DataAvail::~CPDF_DataAvail() {
   m_pHintTables.reset();
-  if (m_pLinearized)
-    m_pLinearized->Release();
-
-  if (m_pRoot)
-    m_pRoot->Release();
-
-  if (m_pTrailer)
-    m_pTrailer->Release();
+  delete m_pLinearized;
+  delete m_pRoot;
+  delete m_pTrailer;
 
   for (CPDF_Object* pObject : m_arrayAcroforms)
-    pObject->Release();
+    delete pObject;
 }
 
 void CPDF_DataAvail::SetDocument(CPDF_Document* pDoc) {
@@ -230,7 +225,7 @@ bool CPDF_DataAvail::CheckAcroFormSubObject(DownloadHints* pHints) {
   }
 
   for (CPDF_Object* pObject : m_arrayAcroforms)
-    pObject->Release();
+    delete pObject;
 
   m_arrayAcroforms.clear();
   return true;
@@ -400,9 +395,7 @@ bool CPDF_DataAvail::CheckInfo(DownloadHints* pHints) {
     return false;
   }
 
-  if (pInfo)
-    pInfo->Release();
-
+  delete pInfo;
   m_docStatus =
       (m_bHaveAcroForm ? PDF_DATAAVAIL_ACROFORM : PDF_DATAAVAIL_PAGETREE);
 
@@ -499,7 +492,7 @@ bool CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
     }
 
     if (!pObj->IsDictionary()) {
-      pObj->Release();
+      delete pObj;
       continue;
     }
 
@@ -508,7 +501,7 @@ bool CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
       m_PagesArray.push_back(pObj);
       continue;
     }
-    pObj->Release();
+    delete pObj;
   }
 
   m_PageObjList.RemoveAll();
@@ -524,15 +517,15 @@ bool CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
       continue;
 
     if (!GetPageKids(m_pCurrentParser, pPages)) {
-      pPages->Release();
+      delete pPages;
       while (++i < iPages)
-        m_PagesArray[i]->Release();
+        delete m_PagesArray[i];
 
       m_PagesArray.clear();
       m_docStatus = PDF_DATAAVAIL_ERROR;
       return false;
     }
-    pPages->Release();
+    delete pPages;
   }
 
   m_PagesArray.clear();
@@ -587,12 +580,12 @@ bool CPDF_DataAvail::CheckPages(DownloadHints* pHints) {
   }
 
   if (!GetPageKids(m_pCurrentParser, pPages)) {
-    pPages->Release();
+    delete pPages;
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
 
-  pPages->Release();
+  delete pPages;
   m_docStatus = PDF_DATAAVAIL_PAGE;
   return true;
 }
@@ -763,7 +756,7 @@ bool CPDF_DataAvail::CheckHintTables(DownloadHints* pHints) {
 
   std::unique_ptr<CPDF_HintTables> pHintTables(
       new CPDF_HintTables(this, pDict));
-  std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pHintStream(
+  std::unique_ptr<CPDF_Object> pHintStream(
       ParseIndirectObjectAt(szHintStart, 0));
   CPDF_Stream* pStream = ToStream(pHintStream.get());
   if (pStream && pHintTables->LoadHintStream(pStream))
@@ -951,11 +944,11 @@ int32_t CPDF_DataAvail::CheckCrossRefStream(DownloadHints* pHints,
       if (pName->GetString() == "XRef") {
         m_Pos += m_parser.m_pSyntax->SavePos();
         xref_offset = pObj->GetDict()->GetIntegerFor("Prev");
-        pObj->Release();
+        delete pObj;
         return 1;
       }
     }
-    pObj->Release();
+    delete pObj;
     return -1;
   }
   pHints->AddSegment(m_Pos, req_size);
@@ -1181,7 +1174,7 @@ bool CPDF_DataAvail::CheckTrailer(DownloadHints* pHints) {
     ScopedFileStream file(FX_CreateMemoryStream(pBuf, (size_t)iSize, false));
     m_syntaxParser.InitParser(file.get(), 0);
 
-    std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pTrailer(
+    std::unique_ptr<CPDF_Object> pTrailer(
         m_syntaxParser.GetObject(nullptr, 0, 0, true));
     if (!pTrailer) {
       m_Pos += m_syntaxParser.SavePos();
@@ -1266,7 +1259,7 @@ bool CPDF_DataAvail::CheckArrayPageNode(uint32_t dwPageNo,
 
   CPDF_Array* pArray = pPages->AsArray();
   if (!pArray) {
-    pPages->Release();
+    delete pPages;
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
@@ -1281,7 +1274,7 @@ bool CPDF_DataAvail::CheckArrayPageNode(uint32_t dwPageNo,
     pPageNode->m_childNode.Add(pNode);
     pNode->m_dwPageNo = pKid->GetRefObjNum();
   }
-  pPages->Release();
+  delete pPages;
   return true;
 }
 
@@ -1304,12 +1297,12 @@ bool CPDF_DataAvail::CheckUnkownPageNode(uint32_t dwPageNo,
   if (pPage->IsArray()) {
     pPageNode->m_dwPageNo = dwPageNo;
     pPageNode->m_type = PDF_PAGENODE_ARRAY;
-    pPage->Release();
+    delete pPage;
     return true;
   }
 
   if (!pPage->IsDictionary()) {
-    pPage->Release();
+    delete pPage;
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
@@ -1350,11 +1343,11 @@ bool CPDF_DataAvail::CheckUnkownPageNode(uint32_t dwPageNo,
   } else if (type == "Page") {
     pPageNode->m_type = PDF_PAGENODE_PAGE;
   } else {
-    pPage->Release();
+    delete pPage;
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
-  pPage->Release();
+  delete pPage;
   return true;
 }
 
@@ -1442,23 +1435,23 @@ bool CPDF_DataAvail::CheckPageCount(DownloadHints* pHints) {
 
   CPDF_Dictionary* pPagesDict = pPages->GetDict();
   if (!pPagesDict) {
-    pPages->Release();
+    delete pPages;
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return false;
   }
 
   if (!pPagesDict->KeyExist("Kids")) {
-    pPages->Release();
+    delete pPages;
     return true;
   }
 
   int count = pPagesDict->GetIntegerFor("Count");
   if (count > 0) {
-    pPages->Release();
+    delete pPages;
     return true;
   }
 
-  pPages->Release();
+  delete pPages;
   return false;
 }