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

core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp

Index: core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
diff --git a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
index 9afe4e5f13a5e82f256157dd3de5a5e17c8bd833..aad1edb448a939bfde840309c7b06a27a5452e08 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
@@ -82,18 +82,13 @@ 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;
 
   int iSize = m_arrayAcroforms.GetSize();
   for (int i = 0; i < iSize; ++i)
-    m_arrayAcroforms.GetAt(i)->Release();
+    delete m_arrayAcroforms.GetAt(i);
 }
 
 void CPDF_DataAvail::SetDocument(CPDF_Document* pDoc) {
@@ -236,7 +231,7 @@ FX_BOOL CPDF_DataAvail::CheckAcroFormSubObject(DownloadHints* pHints) {
   if (bRet) {
     int32_t iSize = m_arrayAcroforms.GetSize();
     for (int32_t i = 0; i < iSize; ++i) {
-      m_arrayAcroforms.GetAt(i)->Release();
+      delete m_arrayAcroforms.GetAt(i);
     }
     m_arrayAcroforms.RemoveAll();
   } else {
@@ -410,9 +405,7 @@ FX_BOOL CPDF_DataAvail::CheckInfo(DownloadHints* pHints) {
     return FALSE;
   }
 
-  if (pInfo)
-    pInfo->Release();
-
+  delete pInfo;
   m_docStatus =
       (m_bHaveAcroForm ? PDF_DATAAVAIL_ACROFORM : PDF_DATAAVAIL_PAGETREE);
 
@@ -509,7 +502,7 @@ FX_BOOL CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
     }
 
     if (!pObj->IsDictionary()) {
-      pObj->Release();
+      delete pObj;
       continue;
     }
 
@@ -518,7 +511,7 @@ FX_BOOL CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
       m_PagesArray.Add(pObj);
       continue;
     }
-    pObj->Release();
+    delete pObj;
   }
 
   m_PageObjList.RemoveAll();
@@ -534,17 +527,17 @@ FX_BOOL CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
       continue;
 
     if (!GetPageKids(m_pCurrentParser, pPages)) {
-      pPages->Release();
+      delete pPages;
       while (++i < iPages) {
         pPages = m_PagesArray.GetAt(i);
-        pPages->Release();
+        delete pPages;
       }
       m_PagesArray.RemoveAll();
 
       m_docStatus = PDF_DATAAVAIL_ERROR;
       return FALSE;
     }
-    pPages->Release();
+    delete pPages;
   }
 
   m_PagesArray.RemoveAll();
@@ -599,12 +592,12 @@ FX_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;
 }
@@ -775,7 +768,7 @@ FX_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))
@@ -963,11 +956,11 @@ 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);
@@ -1193,7 +1186,7 @@ FX_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();
@@ -1278,7 +1271,7 @@ FX_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;
   }
@@ -1293,7 +1286,7 @@ FX_BOOL CPDF_DataAvail::CheckArrayPageNode(uint32_t dwPageNo,
     pPageNode->m_childNode.Add(pNode);
     pNode->m_dwPageNo = pKid->GetRefObjNum();
   }
-  pPages->Release();
+  delete pPages;
   return TRUE;
 }
 
@@ -1316,12 +1309,12 @@ FX_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;
   }
@@ -1362,11 +1355,11 @@ FX_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;
 }
 
@@ -1454,23 +1447,23 @@ FX_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;
 }