Make CFX_WideString::FromLocal() take a CFX_ByteStringC arg

core/fxcrt/include/fx_basic.h

 // 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
 
 #ifndef CORE_FXCRT_INCLUDE_FX_BASIC_H_
 #define CORE_FXCRT_INCLUDE_FX_BASIC_H_
 
 #include <algorithm>
@@ skipping 168 matching lines @@
   static const size_t kBufSize = 32768;
 
   size_t m_Length;
   std::unique_ptr<uint8_t, FxFreeDeleter> m_pBuffer;
   IFX_StreamWrite* m_pFile;
 };
 
 class CFX_CharMap {
  public:
   static CFX_ByteString GetByteString(uint16_t codepage,
-                                      const CFX_WideString& wstr);
+                                      const CFX_WideStringC& wstr);
 
   static CFX_WideString GetWideString(uint16_t codepage,
-                                      const CFX_ByteString& bstr);
+                                      const CFX_ByteStringC& bstr);
 
   CFX_CharMap() = delete;
 };
 
 class CFX_UTF8Decoder {
  public:
   CFX_UTF8Decoder() { m_PendingBytes = 0; }
 
   void Clear();
 
@@ skipping 855 matching lines @@
   FX_FLOAT c;
   FX_FLOAT d;
   FX_FLOAT e;
   FX_FLOAT f;
   FX_FLOAT g;
   FX_FLOAT h;
   FX_FLOAT i;
 };
 
 #endif  // CORE_FXCRT_INCLUDE_FX_BASIC_H_