Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.

core/fpdfdoc/doc_tagged.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 <map>
 
 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
@@ skipping 187 matching lines @@
   return TRUE;
 }
 CPDF_StructElementImpl::CPDF_StructElementImpl(CPDF_StructTreeImpl* pTree,
                                                CPDF_StructElementImpl* pParent,
                                                CPDF_Dictionary* pDict)
     : m_RefCount(0) {
   m_pTree = pTree;
   m_pDict = pDict;
   m_Type = pDict->GetStringBy("S");
   if (pTree->m_pRoleMap) {
-    CFX_ByteString mapped = pTree->m_pRoleMap->GetStringBy(m_Type);
+    CFX_ByteString mapped =
+        pTree->m_pRoleMap->GetStringBy(m_Type.AsByteStringC());
     if (!mapped.IsEmpty()) {
       m_Type = mapped;
     }
   }
   m_pParent = pParent;
   LoadKids(pDict);
 }
 CPDF_StructElementImpl::~CPDF_StructElementImpl() {
   for (int i = 0; i < m_Kids.GetSize(); i++) {
     if (m_Kids[i].m_Type == CPDF_StructKid::Element &&
@@ skipping 147 matching lines @@
   if (!pC)
     return nullptr;
 
   CPDF_Dictionary* pClassMap = m_pTree->m_pTreeRoot->GetDictBy("ClassMap");
   if (!pClassMap)
     return nullptr;
 
   if (CPDF_Array* pArray = pC->AsArray()) {
     for (uint32_t i = 0; i < pArray->GetCount(); i++) {
       CFX_ByteString class_name = pArray->GetStringAt(i);
-      CPDF_Dictionary* pClassDict = pClassMap->GetDictBy(class_name);
+      CPDF_Dictionary* pClassDict =
+          pClassMap->GetDictBy(class_name.AsByteStringC());
       if (pClassDict && pClassDict->GetStringBy("O") == owner)
         return pClassDict->GetDirectObjectBy(name);
     }
     return nullptr;
   }
   CFX_ByteString class_name = pC->GetString();
-  CPDF_Dictionary* pClassDict = pClassMap->GetDictBy(class_name);
+  CPDF_Dictionary* pClassDict =
+      pClassMap->GetDictBy(class_name.AsByteStringC());
   if (pClassDict && pClassDict->GetStringBy("O") == owner)
     return pClassDict->GetDirectObjectBy(name);
   return nullptr;
 }
 CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
                                              const CFX_ByteStringC& name,
                                              FX_BOOL bInheritable,
                                              int subindex) {
   CPDF_Object* pAttr = GetAttr(owner, name, bInheritable);
   CPDF_Array* pArray = ToArray(pAttr);
@@ skipping 37 matching lines @@
   return ToNumber(pAttr) ? pAttr->GetNumber() : default_value;
 }
 int CPDF_StructElementImpl::GetInteger(const CFX_ByteStringC& owner,
                                        const CFX_ByteStringC& name,
                                        int default_value,
                                        FX_BOOL bInheritable,
                                        int subindex) {
   CPDF_Object* pAttr = GetAttr(owner, name, bInheritable, subindex);
   return ToNumber(pAttr) ? pAttr->GetInteger() : default_value;
 }