Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.

core/fpdfdoc/doc_link.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/include/fpdfdoc/fpdf_doc.h"
 
 #include <vector>
 
@@ skipping 63 matching lines @@
 CFX_FloatRect CPDF_Link::GetRect() {
   return m_pDict->GetRectBy("Rect");
 }
 CPDF_Dest CPDF_Link::GetDest(CPDF_Document* pDoc) {
   CPDF_Object* pDest = m_pDict->GetDirectObjectBy("Dest");
   if (!pDest)
     return CPDF_Dest();
 
   if (pDest->IsString() || pDest->IsName()) {
     CPDF_NameTree name_tree(pDoc, "Dests");
-    CFX_ByteStringC name = pDest->GetString();
-    return CPDF_Dest(name_tree.LookupNamedDest(pDoc, name));
+    return CPDF_Dest(
+        name_tree.LookupNamedDest(pDoc, pDest->GetString().AsByteStringC()));
   }
   if (CPDF_Array* pArray = pDest->AsArray())
     return CPDF_Dest(pArray);
   return CPDF_Dest();
 }
 CPDF_Action CPDF_Link::GetAction() {
   return CPDF_Action(m_pDict->GetDictBy("A"));
 }