Cleanup: Do not check pointers before deleting them.

core/src/fpdfapi/fpdf_render/fpdf_render_pattern.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_render.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../../../include/fxge/fx_ge.h"
 #include "../fpdf_page/pageint.h"
@@ skipping 976 matching lines @@
                 CFX_AffineMatrix matrix = *pObj2Device;
                 matrix.Translate(orig_x - mtPattern2Device.e, orig_y - mtPattern2Device.f);
                 m_pDevice->SaveState();
                 CPDF_RenderStatus status;
                 status.Initialize(m_pContext, m_pDevice, NULL, NULL, this, pStates, &m_Options,
                                   pPattern->m_pForm->m_Transparency, m_bDropObjects, pFormResource);
                 status.RenderObjectList(pPattern->m_pForm, &matrix);
                 m_pDevice->RestoreState();
             }
         m_pDevice->RestoreState();
-        if (pStates) {
-            delete pStates;
-        }
+        delete pStates;
         return;
     }
     if (bAligned) {
         int orig_x = FXSYS_round(mtPattern2Device.e);
         int orig_y = FXSYS_round(mtPattern2Device.f);
         min_col = (clip_box.left - orig_x) / width;
         if (clip_box.left < orig_x) {
             min_col --;
         }
         max_col = (clip_box.right - orig_x) / width;
@@ skipping 93 matching lines @@
         }
     }
     if(bStroke) {
         CPDF_Color& StrokeColor = *pPathObj->m_ColorState.GetStrokeColor();
         if(StrokeColor.m_pCS && StrokeColor.m_pCS->GetFamily() == PDFCS_PATTERN) {
             DrawPathWithPattern(pPathObj, pObj2Device, &StrokeColor, TRUE);
             bStroke = FALSE;
         }
     }
 }