Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.

core/fpdfdoc/doc_annot.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/fpdfapi/fpdf_page/include/cpdf_form.h"
 #include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
@@ skipping 163 matching lines @@
     return pStream;
 
   if (CPDF_Dictionary* pDict = psub->AsDictionary()) {
     CFX_ByteString as = pAnnotDict->GetStringBy("AS");
     if (as.IsEmpty()) {
       CFX_ByteString value = pAnnotDict->GetStringBy("V");
       if (value.IsEmpty()) {
         CPDF_Dictionary* pDict = pAnnotDict->GetDictBy("Parent");
         value = pDict ? pDict->GetStringBy("V") : CFX_ByteString();
       }
-      if (value.IsEmpty() || !pDict->KeyExist(value))
+      if (value.IsEmpty() || !pDict->KeyExist(value.AsByteStringC()))
         as = "Off";
       else
         as = value;
     }
-    return pDict->GetStreamBy(as);
+    return pDict->GetStreamBy(as.AsByteStringC());
   }
   return nullptr;
 }
 
 CPDF_Form* CPDF_Annot::GetAPForm(const CPDF_Page* pPage, AppearanceMode mode) {
   CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pAnnotDict, mode);
   if (!pStream)
     return nullptr;
 
   auto it = m_APMap.find(pStream);
@@ skipping 147 matching lines @@
   CFX_PathData path;
   width /= 2;
   path.AppendRect(rect.left + width, rect.bottom + width, rect.right - width,
                   rect.top - width);
   int fill_type = 0;
   if (pOptions && (pOptions->m_Flags & RENDER_NOPATHSMOOTH)) {
     fill_type |= FXFILL_NOPATHSMOOTH;
   }
   pDevice->DrawPath(&path, pUser2Device, &graph_state, argb, argb, fill_type);
 }