Make CFX_WideString(const CFX_WideString&) explicit.

core/fxcrt/fx_xml_parser.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 "core/fxcrt/xml_int.h"
 
 #include <vector>
 
@@ skipping 439 matching lines @@
             SkipWhiteSpaces();
             iState = 0;
           } else if (ch == '/') {
             CFX_ByteString space, name;
             GetName(space, name);
             SkipWhiteSpaces();
             m_dwIndex++;
             iState = 10;
           } else {
             content << decoder.GetResult();
-            CFX_WideString dataStr = content.AsStringC();
+            CFX_WideString dataStr = content.MakeString();
             if (!bCDATA && !m_bSaveSpaceChars) {
               dataStr.TrimRight(L" \t\r\n");
             }
             InsertContentSegment(bCDATA, dataStr.AsStringC(), pElement);
             content.Clear();
             decoder.Clear();
             bCDATA = FALSE;
             iState = 0;
             m_dwIndex--;
             CXML_Element* pSubElement = ParseElement(pElement, TRUE);
@@ skipping 23 matching lines @@
       if (iState == 10) {
         break;
       }
     }
     m_nOffset = m_nBufferOffset + (FX_FILESIZE)m_dwIndex;
     if (iState == 10 || m_dwIndex < m_dwBufferSize || IsEOF()) {
       break;
     }
   } while (ReadNextBlock());
   content << decoder.GetResult();
-  CFX_WideString dataStr = content.AsStringC();
+  CFX_WideString dataStr = content.MakeString();
   if (!m_bSaveSpaceChars) {
     dataStr.TrimRight(L" \t\r\n");
   }
   InsertContentSegment(bCDATA, dataStr.AsStringC(), pElement);
   content.Clear();
   decoder.Clear();
   bCDATA = FALSE;
   return pElement;
 }
 void CXML_Parser::InsertContentSegment(FX_BOOL bCDATA,
@@ skipping 262 matching lines @@
   if (!m_pMap)
     m_pMap.reset(new std::vector<CXML_AttrItem>);
 
   for (CXML_AttrItem& item : *m_pMap) {
     if (item.Matches(space, name)) {
       item.m_Value = value;
       return;
     }
   }
 
-  m_pMap->push_back({space, name, value});
+  m_pMap->push_back({space, name, CFX_WideString(value)});
 }
 
 int CXML_AttrMap::GetSize() const {
   return m_pMap ? pdfium::CollectionSize<int>(*m_pMap) : 0;
 }
 
 CXML_AttrItem& CXML_AttrMap::GetAt(int index) const {
   return (*m_pMap)[index];
 }