Get rid of most instance of 'foo == NULL'

core/src/fpdftext/fpdf_text_search.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/include/fpdfapi/fpdf_page.h"
 #include "core/include/fpdfapi/fpdf_pageobj.h"
 #include "text_int.h"
 
@@ skipping 285 matching lines @@
   return FALSE;
 }
 void GetTextStream_Unicode(CFX_WideTextBuf& buffer,
                            CPDF_PageObjects* pPage,
                            FX_BOOL bUseLF,
                            CFX_PtrArray* pObjArray) {
   CPDF_TextStream textstream(buffer, bUseLF, pObjArray);
   FX_POSITION pos = pPage->GetFirstObjectPosition();
   while (pos) {
     CPDF_PageObject* pObject = pPage->GetNextObject(pos);
-    if (pObject == NULL) {
+    if (!pObject) {
       continue;
     }
     if (pObject->m_Type != PDFPAGE_TEXT) {
       continue;
     }
     textstream.ProcessObject((CPDF_TextObject*)pObject, FALSE);
   }
 }
 CFX_WideString PDF_GetFirstTextLine_Unicode(CPDF_Document* pDoc,
                                             CPDF_Dictionary* pPage) {
@@ skipping 11 matching lines @@
     CPDF_PageObject* pObject = page.GetNextObject(pos);
     if (pObject->m_Type != PDFPAGE_TEXT) {
       continue;
     }
     if (textstream.ProcessObject((CPDF_TextObject*)pObject, TRUE)) {
       break;
     }
   }
   return buffer.GetWideString();
 }