Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.

core/fxge/win32/fx_win32_device.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/fxge/fx_ge.h"
 
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #include <crtdbg.h>
@@ skipping 442 matching lines @@
   }
   // Select the fallback font information class if GDI is disabled.
   CFX_Win32FallbackFontInfo* pInfoFallback = new CFX_Win32FallbackFontInfo;
   // Construct the font path manually, SHGetKnownFolderPath won't work under
   // a restrictive sandbox.
   CHAR windows_path[MAX_PATH] = {};
   DWORD path_len = ::GetWindowsDirectoryA(windows_path, MAX_PATH);
   if (path_len > 0 && path_len < MAX_PATH) {
     CFX_ByteString fonts_path(windows_path);
     fonts_path += "\\Fonts";
-    pInfoFallback->AddPath(fonts_path);
+    pInfoFallback->AddPath(fonts_path.AsByteStringC());
   }
   return pInfoFallback;
 }
 void CFX_GEModule::InitPlatform() {
   CWin32Platform* pPlatformData = new CWin32Platform;
   OSVERSIONINFO ver;
   ver.dwOSVersionInfoSize = sizeof(ver);
   GetVersionEx(&ver);
   pPlatformData->m_bHalfTone = ver.dwMajorVersion >= 5;
   if (IsGDIEnabled()) {
@@ skipping 889 matching lines @@
     SelectObject(m_hDC, m_hOldBitmap);
     DeleteDC(m_hDC);
   }
   if (m_hBitmap) {
     DeleteObject(m_hBitmap);
   }
   delete GetBitmap();
 }
 
 #endif  // _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_