Cleanup: Remove remaining deprecated file_util functions.

base/file_util.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/file_util.h"
 
 #if defined(OS_WIN)
 #include <io.h>
 #endif
 #include <stdio.h>
@@ skipping 362 matching lines @@
       NULL, NULL);
 
   if (file_ == base::kInvalidPlatformFileValue) {
     DLOG(ERROR) << "Couldn't open " << file_name.value();
     return false;
   }
 
   return MapFileToMemoryInternal();
 }
 
-// Deprecated functions ----------------------------------------------------
-
-#if defined(OS_WIN)
-FILE* OpenFile(const std::wstring& filename, const char* mode) {
-  return OpenFile(FilePath::FromWStringHack(filename), mode);
-}
-int ReadFile(const std::wstring& filename, char* data, int size) {
-  return ReadFile(FilePath::FromWStringHack(filename), data, size);
-}
-int WriteFile(const std::wstring& filename, const char* data, int size) {
-  return WriteFile(FilePath::FromWStringHack(filename), data, size);
-}
-#endif  // OS_WIN
-
 ///////////////////////////////////////////////
 // FileEnumerator
 //
 // Note: the main logic is in file_util_<platform>.cc
 
 bool FileEnumerator::ShouldSkip(const FilePath& path) {
   FilePath::StringType basename = path.BaseName().value();
   return IsDot(path) || (IsDotDot(path) && !(INCLUDE_DOT_DOT & file_type_));
 }
 
 }  // namespace