Prefer System Flash over non-local component updated Flash.

base/files/file_util.h

 // 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.
 
 // This file contains utility functions for dealing with the local
 // filesystem.
 
 #ifndef BASE_FILES_FILE_UTIL_H_
 #define BASE_FILES_FILE_UTIL_H_
 
@@ skipping 270 matching lines @@
 // a drive letter ("C:\...").  Return false if no such path exists.
 BASE_EXPORT bool DevicePathToDriveLetterPath(const FilePath& device_path,
                                              FilePath* drive_letter_path);
 
 // Given an existing file in |path|, set |real_path| to the path
 // in native NT format, of the form "\Device\HarddiskVolumeXX\..".
 // Returns false if the path can not be found. Empty files cannot
 // be resolved with this function.
 BASE_EXPORT bool NormalizeToNativeFilePath(const FilePath& path,
                                            FilePath* nt_path);
+
+// Given an existing file in |path|, returns whether this file is on a network
+// drive or not.
+BASE_EXPORT bool IsOnNetworkDrive(const base::FilePath& path);
 #endif
 
 // This function will return if the given file is a symlink or not.
 BASE_EXPORT bool IsLink(const FilePath& file_path);
 
 // Returns information about the given file path.
 BASE_EXPORT bool GetFileInfo(const FilePath& file_path, File::Info* info);
 
 // Sets the time of the last access and the time of the last modification.
 BASE_EXPORT bool TouchFile(const FilePath& path,
@@ skipping 130 matching lines @@
 // This function simulates Move(), but unlike Move() it works across volumes.
 // This function is not transactional.
 BASE_EXPORT bool CopyAndDeleteDirectory(const FilePath& from_path,
                                         const FilePath& to_path);
 #endif  // defined(OS_WIN)
 
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_FILES_FILE_UTIL_H_