Make CFX_ByteString(const CFX_ByteStringC&) explicit.

fpdfsdk/pdfwindow/PWL_Edit.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 "fpdfsdk/pdfwindow/PWL_Edit.h"
 
 #include <vector>
 
@@ skipping 485 matching lines @@
     return CPVT_WordRange(wpStart, wpEnd);
   }
 
   return CPVT_WordRange();
 }
 
 CFX_ByteString CPWL_Edit::GetTextAppearanceStream(
     const CFX_FloatPoint& ptOffset) const {
   CFX_ByteTextBuf sRet;
   CFX_ByteString sEdit = CPWL_Utils::GetEditAppStream(m_pEdit, ptOffset);
-
   if (sEdit.GetLength() > 0) {
     sRet << "BT\n" << CPWL_Utils::GetColorAppStream(GetTextColor()).AsStringC()
          << sEdit.AsStringC() << "ET\n";
   }
-
-  return sRet.AsStringC();
+  return sRet.MakeString();
 }
 
 CFX_ByteString CPWL_Edit::GetCaretAppearanceStream(
     const CFX_FloatPoint& ptOffset) const {
   if (m_pEditCaret)
     return m_pEditCaret->GetCaretAppearanceStream(ptOffset);
 
   return CFX_ByteString();
 }
 
@@ skipping 413 matching lines @@
 }
 
 void CPWL_Edit::GeneratePageObjects(CPDF_PageObjectHolder* pObjectHolder,
                                     const CFX_FloatPoint& ptOffset) {
   CFX_ArrayTemplate<CPDF_TextObject*> ObjArray;
   IFX_Edit::GeneratePageObjects(
       pObjectHolder, m_pEdit, ptOffset, NULL,
       CPWL_Utils::PWLColorToFXColor(GetTextColor(), GetTransparency()),
       ObjArray);
 }