Get rid of NULLs in core/

xfa/fxfa/app/xfa_textlayout.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/fxfa/app/xfa_textlayout.h"
 
 #include <algorithm>
 
@@ skipping 634 matching lines @@
     FX_FLOAT fPos = ms.ToUnit(XFA_UNIT_Pt);
     pTabstopContext->Append(dwHashCode, fPos);
   }
   return TRUE;
 }
 CXFA_TextLayout::CXFA_TextLayout(CXFA_TextProvider* pTextProvider)
     : m_bHasBlock(FALSE),
       m_pTextProvider(pTextProvider),
       m_pTextDataNode(nullptr),
       m_bRichText(FALSE),
-      m_pAllocator(nullptr),
-      m_pBreak(nullptr),
-      m_pLoader(nullptr),
       m_iLines(0),
       m_fMaxWidth(0),
-      m_pTabstopContext(nullptr),
       m_bBlockContinue(TRUE) {
   ASSERT(m_pTextProvider);
 }
 CXFA_TextLayout::~CXFA_TextLayout() {
   m_textParser.Reset();
   Unload();
 }
 void CXFA_TextLayout::Unload() {
   int32_t iCount = m_pieceLines.GetSize();
   for (int32_t i = 0; i < iCount; i++) {
@@ skipping 1271 matching lines @@
   tr.iLength = iLength;
   tr.fFontSize = pPiece->fFontSize;
   tr.iBidiLevel = pPiece->iBidiLevel;
   tr.iCharRotation = 0;
   tr.wLineBreakChar = L'\n';
   tr.iVerticalScale = pPiece->iVerScale;
   tr.dwLayoutStyles = FX_RTFLAYOUTSTYLE_ExpandTab;
   tr.iHorizontalScale = pPiece->iHorScale;
   return TRUE;
 }