Cleanup: Do not check pointers before deleting them.

core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "pageint.h"
@@ skipping 900 matching lines @@
     m_pData = NULL;
     m_Status = Ready;
     m_pType3Char = NULL;
 }
 CPDF_ContentParser::~CPDF_ContentParser()
 {
     Clear();
 }
 void CPDF_ContentParser::Clear()
 {
-    if (m_pParser) {
-        delete m_pParser;
-    }
-    if (m_pSingleStream) {
-        delete m_pSingleStream;
-    }
+    delete m_pParser;
+    delete m_pSingleStream;
     if (m_pStreamArray) {
         for (FX_DWORD i = 0; i < m_nStreams; i ++)
-            if (m_pStreamArray[i]) {
-                delete m_pStreamArray[i];
-            }
+            delete m_pStreamArray[i];
         FX_Free(m_pStreamArray);
     }
     if (m_pData && m_pSingleStream == NULL) {
         FX_Free((void*)m_pData);
     }
     m_pParser = NULL;
     m_pStreamArray = NULL;
     m_pSingleStream = NULL;
     m_pData = NULL;
     m_Status = Ready;
@@ skipping 199 matching lines @@
         return 100;
     }
     if (m_InternalStage == PAGEPARSE_STAGE_GETCONTENT) {
         return 10;
     }
     if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) {
         return 90;
     }
     return 10 + 80 * m_CurrentOffset / m_Size;
 }