Remove "this==NULL" and adjust corresponding callers

core/src/fpdfapi/fpdf_page/fpdf_page_parser_new.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 "pageint.h"
 #if defined(_FPDFAPI_MINI_)
@@ skipping 480 matching lines @@
                         }
                         m_pLastImageDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
                     }
                 }
             }
         }
     } else {
         m_bSameLastDict = TRUE;
     }
     m_ImageSrcBuf.Clear();
-    if (m_pLastCloneImageDict) {
+    if (m_pLastCloneImageDict)
         m_pLastCloneImageDict->Release();
-    }
+
     m_pLastCloneImageDict = (CPDF_Dictionary*)m_pLastImageDict->Clone();
     if (m_pLastCloneImageDict->KeyExist(FX_BSTRC("Filter"))) {
         m_WordState = 10;
         m_InlineImageState = 0;
     } else {
         int width = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Width"));
         int height = m_pLastCloneImageDict->GetInteger(FX_BSTRC("Height"));
         int OrigSize = 0;
         CPDF_Object* pCSObj = m_pLastCloneImageDict->GetElementValue(FX_BSTRC("ColorSpace"));
         if (pCSObj != NULL) {
@@ skipping 299 matching lines @@
     if (m_Matrices.GetSize() > 1) {
         CFX_FloatRect rect1(m_Left, m_Bottom, m_Right, m_Top);
         rect.Union(rect1);
     }
     m_Left = rect.left;
     m_Right = rect.right;
     m_Top = rect.top;
     m_Bottom = rect.bottom;
 }
 #endif