Revert "Remove FX_Alloc() null checks now that it can't return NULL."

core/src/fpdfapi/fpdf_page/fpdf_page.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 "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "pageint.h"
 CPDF_PageObject* CPDF_PageObject::Create(int type)
@@ skipping 186 matching lines @@
         m_pCharCodes = NULL;
     }
     if (m_pCharPos) {
         FX_Free(m_pCharPos);
         m_pCharPos = NULL;
     }
     m_nChars = pSrcObj->m_nChars;
     if (m_nChars > 1) {
         m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
         m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
-        for (int i = 0; i < m_nChars; i ++) {
+        int i;
+        for (i = 0; i < m_nChars; i ++) {
             m_pCharCodes[i] = pSrcObj->m_pCharCodes[i];
         }
-        for (int i = 0; i < m_nChars - 1; i ++) {
+        for (i = 0; i < m_nChars - 1; i ++) {
             m_pCharPos[i] = pSrcObj->m_pCharPos[i];
         }
     } else {
         m_pCharCodes = pSrcObj->m_pCharCodes;
     }
     m_PosX = pSrcObj->m_PosX;
     m_PosY = pSrcObj->m_PosY;
 }
 void CPDF_TextObject::GetTextMatrix(CFX_AffineMatrix* pMatrix) const
 {
@@ skipping 800 matching lines @@
     matrix = m_PageMatrix;
     matrix.Concat(display_matrix);
 }
 CPDF_ParseOptions::CPDF_ParseOptions()
 {
     m_bTextOnly = FALSE;
     m_bMarkedContent = TRUE;
     m_bSeparateForm = TRUE;
     m_bDecodeInlineImage = FALSE;
 }