Merge to XFA: CFX_MapByteStringToPtr considered harmful (combo patch).

core/src/fpdfapi/fpdf_render/fpdf_render_text.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/fxge/fx_ge.h"
 #include "../../../include/fpdfapi/fpdf_render.h"
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../fpdf_page/pageint.h"
 #include "render_int.h"
 extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix);
 CPDF_Type3Cache::~CPDF_Type3Cache() {
-  FX_POSITION pos = m_SizeMap.GetStartPosition();
-  CFX_ByteString Key;
-  CPDF_Type3Glyphs* pSizeCache = NULL;
-  while (pos) {
-    pSizeCache = (CPDF_Type3Glyphs*)m_SizeMap.GetNextValue(pos);
-    delete pSizeCache;
+  for (const auto& pair : m_SizeMap) {
+    delete pair.second;
   }
-  m_SizeMap.RemoveAll();
+  m_SizeMap.clear();
 }
 CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode,
                                             const CFX_AffineMatrix* pMatrix,
                                             FX_FLOAT retinaScaleX,
                                             FX_FLOAT retinaScaleY) {
   _CPDF_UniqueKeyGen keygen;
   keygen.Generate(
       4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000),
       FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000));
   CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen);
-  CPDF_Type3Glyphs* pSizeCache = NULL;
-  if (!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) {
+  CPDF_Type3Glyphs* pSizeCache;
+  auto it = m_SizeMap.find(FaceGlyphsKey);
+  if (it == m_SizeMap.end()) {
     pSizeCache = new CPDF_Type3Glyphs;
-    m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache);
+    m_SizeMap[FaceGlyphsKey] = pSizeCache;
+  } else {
+    pSizeCache = it->second;
   }
   CFX_GlyphBitmap* pGlyphBitmap;
   if (pSizeCache->m_GlyphMap.Lookup((void*)(uintptr_t)charcode,
                                     (void*&)pGlyphBitmap)) {
     return pGlyphBitmap;
   }
   pGlyphBitmap =
       RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY);
   pSizeCache->m_GlyphMap.SetAt((void*)(uintptr_t)charcode, pGlyphBitmap);
   return pGlyphBitmap;
@@ skipping 743 matching lines @@
     ProcessPath(&path, pObj2Device);
   }
 }
 CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width) {
   int glyph_index = GlyphFromCharCode(charcode);
   if (m_Font.m_Face == NULL) {
     return NULL;
   }
   return m_Font.LoadGlyphPath(glyph_index, dest_width);
 }