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

core/fpdfapi/fpdf_page/fpdf_page_parser.cpp

Index: core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index 18a2e2d88225e5df50b28b6793a40a95cec33ea2..ad1d288579bdaf26b01264d986b4ef055cfe48fb 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -248,24 +248,19 @@ CPDF_StreamContentParser::CPDF_StreamContentParser(
 CPDF_StreamContentParser::~CPDF_StreamContentParser() {
   ClearAllParams();
   FX_Free(m_pPathPoints);
-  if (m_pLastImageDict) {
-    m_pLastImageDict->Release();
-  }
-  if (m_pLastCloneImageDict) {
-    m_pLastCloneImageDict->Release();
-  }
+  delete m_pLastImageDict;
+  delete m_pLastCloneImageDict;
 }
 
 int CPDF_StreamContentParser::GetNextParamPos() {
   if (m_ParamCount == PARAM_BUF_SIZE) {
     m_ParamStartPos++;
-    if (m_ParamStartPos == PARAM_BUF_SIZE) {
+    if (m_ParamStartPos == PARAM_BUF_SIZE)
       m_ParamStartPos = 0;
-    }
-    if (m_ParamBuf[m_ParamStartPos].m_Type == 0) {
-      if (CPDF_Object* pObject = m_ParamBuf[m_ParamStartPos].m_pObject)
-        pObject->Release();
-    }
+
+    if (m_ParamBuf[m_ParamStartPos].m_Type == 0)
+      delete m_ParamBuf[m_ParamStartPos].m_pObject;
+
     return m_ParamStartPos;
   }
   int index = m_ParamStartPos + m_ParamCount;
@@ -312,14 +307,12 @@ void CPDF_StreamContentParser::AddObjectParam(CPDF_Object* pObj) {
 void CPDF_StreamContentParser::ClearAllParams() {
   uint32_t index = m_ParamStartPos;
   for (uint32_t i = 0; i < m_ParamCount; i++) {
-    if (m_ParamBuf[index].m_Type == 0) {
-      if (CPDF_Object* pObject = m_ParamBuf[index].m_pObject)
-        pObject->Release();
-    }
+    if (m_ParamBuf[index].m_Type == 0)
+      delete m_ParamBuf[index].m_pObject;
+
     index++;
-    if (index == PARAM_BUF_SIZE) {
+    if (index == PARAM_BUF_SIZE)
       index = 0;
-    }
   }
   m_ParamStartPos = 0;
   m_ParamCount = 0;
@@ -599,7 +592,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
                                m_pSyntax->GetWordSize());
       if (bsKeyword != "ID") {
         m_pSyntax->SetPos(savePos);
-        pDict->Release();
+        delete pDict;
         return;
       }
     }
@@ -608,8 +601,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
     }
     CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1,
                        m_pSyntax->GetWordSize() - 1);
-    std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> pObj(
-        m_pSyntax->ReadNextObject(false, 0));
+    std::unique_ptr<CPDF_Object> pObj(m_pSyntax->ReadNextObject(false, 0));
     if (!key.IsEmpty()) {
       uint32_t dwObjNum = pObj ? pObj->GetObjNum() : 0;
       if (dwObjNum)
@@ -652,9 +644,9 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
   CPDF_ImageObject* pImgObj = AddImage(pStream, nullptr, true);
   if (!pImgObj) {
     if (pStream) {
-      pStream->Release();
+      delete pStream;
     } else {
-      pDict->Release();
+      delete pDict;
     }
   }
 }