Remove CFX_CountRef::IsNull in favor of operator bool

core/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 "core/fpdfapi/fpdf_page/pageint.h"
 
 #include <limits.h>
 
@@ skipping 688 matching lines @@
     if (pParentMatrix) {
       form_bbox.Transform(pParentMatrix);
     }
   }
   CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDictBy("Resources");
   m_pParser.reset(new CPDF_StreamContentParser(
       pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources,
       pParentMatrix, pForm, pResources, &form_bbox, pGraphicStates, level));
   m_pParser->GetCurStates()->m_CTM = form_matrix;
   m_pParser->GetCurStates()->m_ParentMatrix = form_matrix;
-  if (ClipPath.NotNull()) {
+  if (ClipPath) {
     m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING,
                                                      TRUE);
   }
   if (pForm->m_Transparency & PDFTRANS_GROUP) {
     CPDF_GeneralStateData* pData =
         m_pParser->GetCurStates()->m_GeneralState.GetModify();
     pData->m_BlendType = FXDIB_BLEND_NORMAL;
     pData->m_StrokeAlpha = 1.0f;
     pData->m_FillAlpha = 1.0f;
     pData->m_pSoftMask = nullptr;
@@ skipping 72 matching lines @@
         m_pType3Char->m_BBox.left =
             FXSYS_round(m_pParser->GetType3Data()[2] * 1000);
         m_pType3Char->m_BBox.bottom =
             FXSYS_round(m_pParser->GetType3Data()[3] * 1000);
         m_pType3Char->m_BBox.right =
             FXSYS_round(m_pParser->GetType3Data()[4] * 1000);
         m_pType3Char->m_BBox.top =
             FXSYS_round(m_pParser->GetType3Data()[5] * 1000);
       }
       for (auto& pObj : *m_pObjectHolder->GetPageObjectList()) {
-        if (pObj->m_ClipPath.IsNull()) {
+        if (!pObj->m_ClipPath)
           continue;
-        }
-        if (pObj->m_ClipPath.GetPathCount() != 1) {
+        if (pObj->m_ClipPath.GetPathCount() != 1)
           continue;
-        }
-        if (pObj->m_ClipPath.GetTextCount()) {
+        if (pObj->m_ClipPath.GetTextCount())
           continue;
-        }
         CPDF_Path ClipPath = pObj->m_ClipPath.GetPath(0);
-        if (!ClipPath.IsRect() || pObj->IsShading()) {
+        if (!ClipPath.IsRect() || pObj->IsShading())
           continue;
-        }
         CFX_FloatRect old_rect(ClipPath.GetPointX(0), ClipPath.GetPointY(0),
                                ClipPath.GetPointX(2), ClipPath.GetPointY(2));
         CFX_FloatRect obj_rect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right,
                                pObj->m_Top);
         if (old_rect.Contains(obj_rect)) {
           pObj->m_ClipPath.SetNull();
         }
       }
       m_Status = Done;
       return;
     }
     steps++;
     if (pPause && pPause->NeedToPauseNow()) {
       break;
     }
   }
 }