Remove uses of this->foo.

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.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_parser.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 4281 matching lines @@
 }
 int CPDF_DataAvail::GetPageCount() const {
   if (m_pLinearized) {
     CPDF_Dictionary* pDict = m_pLinearized->GetDict();
     CPDF_Object* pObj = pDict ? pDict->GetElementValue("N") : nullptr;
     return pObj ? pObj->GetInteger() : 0;
   }
   return m_pDocument ? m_pDocument->GetPageCount() : 0;
 }
 CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) {
-  if (!m_pDocument || index < 0 || index >= this->GetPageCount()) {
+  if (!m_pDocument || index < 0 || index >= GetPageCount()) {
     return nullptr;
   }
   if (m_pLinearized) {
     CPDF_Dictionary* pDict = m_pLinearized->GetDict();
     CPDF_Object* pObj = pDict ? pDict->GetElementValue("P") : nullptr;
     int pageNum = pObj ? pObj->GetInteger() : 0;
     if (m_pHintTables && index != pageNum) {
       FX_FILESIZE szPageStartPos = 0;
       FX_FILESIZE szPageLength = 0;
       FX_DWORD dwObjNum = 0;
@@ skipping 427 matching lines @@
   if (!m_pLinearizedDict)
     return -1;
   CPDF_Array* pRange = m_pLinearizedDict->GetArrayBy("H");
   if (!pRange)
     return -1;
   CPDF_Object* pStreamLen = pRange->GetElementValue(1);
   if (!pStreamLen)
     return -1;
   return pStreamLen->GetInteger();
 }