wstring: remove wstring method from PlatformFile

base/platform_file.h

 // Copyright (c) 2011 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.
 
 #ifndef BASE_PLATFORM_FILE_H_
 #define BASE_PLATFORM_FILE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
@@ skipping 82 matching lines @@
   base::Time creation_time;
 };
 
 // Creates or opens the given file. If PLATFORM_FILE_OPEN_ALWAYS is used, and
 // |created| is provided, |created| will be set to true if the file was created
 // or to false in case the file was just opened. |error_code| can be NULL.
 PlatformFile CreatePlatformFile(const FilePath& name,
                                 int flags,
                                 bool* created,
                                 PlatformFileError* error_code);
-// Deprecated.
-PlatformFile CreatePlatformFile(const std::wstring& name,
-                                int flags,
-                                bool* created);
 
 // Closes a file handle. Returns |true| on success and |false| otherwise.
 bool ClosePlatformFile(PlatformFile file);
 
 // Reads the given number of bytes (or until EOF is reached) starting with the
 // given offset. Returns the number of bytes read, or -1 on error.
 int ReadPlatformFile(PlatformFile file, int64 offset, char* data, int size);
 
 // Writes the given buffer into the file at the given offset, overwritting any
 // data that was previously there. Returns the number of bytes written, or -1
@@ skipping 50 matching lines @@
     return temp;
   }
 
  private:
   PlatformFile* value_;
 };
 
 }  // namespace base
 
 #endif  // BASE_PLATFORM_FILE_H_