Remove custom memory manager

core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.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_pageobj.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_render.h"
@@ skipping 53 matching lines @@
         }
         m_pTypeList = FX_Alloc(FX_BYTE, alloc_size);
         FXSYS_memcpy32(m_pTypeList, src.m_pTypeList, m_PathCount);
     } else {
         m_pPathList = NULL;
         m_pTypeList = NULL;
     }
     m_TextCount = src.m_TextCount;
     if (m_TextCount) {
         m_pTextList = FX_Alloc(CPDF_TextObject*, m_TextCount);
-        FXSYS_memset32(m_pTextList, 0, sizeof(CPDF_TextObject*) * m_TextCount);
         for (int i = 0; i < m_TextCount; i ++) {
             if (src.m_pTextList[i]) {
                 m_pTextList[i] = FX_NEW CPDF_TextObject;
                 m_pTextList[i]->Copy(src.m_pTextList[i]);
             } else {
                 m_pTextList[i] = NULL;
             }
         }
     } else {
         m_pTextList = NULL;
     }
 }
 void CPDF_ClipPathData::SetCount(int path_count, int text_count)
 {
     ASSERT(m_TextCount == 0 && m_PathCount == 0);
     if (path_count) {
         m_PathCount = path_count;
         int alloc_size = (path_count + 7) / 8 * 8;
         FX_NEW_VECTOR(m_pPathList, CPDF_Path, alloc_size);
         m_pTypeList = FX_Alloc(FX_BYTE, alloc_size);
     }
     if (text_count) {
         m_TextCount = text_count;
         m_pTextList = FX_Alloc(CPDF_TextObject*, text_count);
-        FXSYS_memset32(m_pTextList, 0, sizeof(void*) * text_count);
     }
 }
 CPDF_Rect CPDF_ClipPath::GetClipBox() const
 {
     CPDF_Rect rect;
     FX_BOOL bStarted = FALSE;
     int count = GetPathCount();
     if (count) {
         rect = GetPath(0).GetBoundingBox();
         for (int i = 1; i < count; i ++) {
@@ skipping 590 matching lines @@
             pDict = NULL;
             if (item.GetParamType() == CPDF_ContentMarkItem::PropertiesDict ||
                     item.GetParamType() == CPDF_ContentMarkItem::DirectDict) {
                 pDict = (CPDF_Dictionary*)item.GetParam();
             }
             return TRUE;
         }
     }
     return FALSE;
 }