Do not check pointers before deleting them.

xfa/fxgraphics/cfx_path_generator.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 "xfa/fxgraphics/cfx_path_generator.h"
 
-CFX_PathGenerator::CFX_PathGenerator() {
-  m_pPathData = NULL;
-}
+CFX_PathGenerator::CFX_PathGenerator() : m_pPathData(nullptr) {}
+
 void CFX_PathGenerator::Create() {
   m_pPathData = new CFX_PathData;
 }
+
 CFX_PathGenerator::~CFX_PathGenerator() {
-  if (m_pPathData) {
-    delete m_pPathData;
-    m_pPathData = NULL;
-  }
+  delete m_pPathData;
 }
+
 void CFX_PathGenerator::AddPathData(CFX_PathData* pPathData) {
   if (pPathData && pPathData->GetPointCount() > 0) {
     int nCount = pPathData->GetPointCount();
     FX_PATHPOINT* pPoints = pPathData->GetPoints();
     AddPathData(pPoints, nCount);
   }
 }
 void CFX_PathGenerator::AddPathData(FX_PATHPOINT* pPoints, int nCount) {
   if (pPoints && nCount > 0) {
     int nOldCount = m_pPathData->GetPointCount();
@@ skipping 159 matching lines @@
     m_pPathData->SetPoint(old_count, x, y, FXPT_MOVETO);
     m_pPathData->SetPoint(old_count + 1, x + (width * FXSYS_cos(start_angle)),
                           y + (height * FXSYS_sin(start_angle)), FXPT_LINETO);
     return;
   }
   AddArc(x, y, width, height, start_angle, sweep_angle);
   m_pPathData->AddPointCount(1);
   m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y,
                         FXPT_LINETO | FXPT_CLOSEFIGURE);
 }