[Chrome OS]Implement MediaStorageUtil::GetDeviceInfoForPath function to support media gallery permi…

chrome/browser/system_monitor/media_storage_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.
 
 // chrome::MediaStorageUtil implementation.
 
 #include "chrome/browser/system_monitor/media_storage_util.h"
 
 #include <vector>
 
@@ skipping 166 matching lines @@
 }
 
 // static
 void MediaStorageUtil::SetGetDeviceInfoFromPathFunctionForTesting(
     GetDeviceInfoFromPathFunction function) {
   g_test_get_device_info_from_path_function = function;
 }
 
 MediaStorageUtil::MediaStorageUtil() {}
 
-#if !defined(OS_LINUX) || defined(OS_CHROMEOS)
+#if !defined(OS_LINUX)
 // static
 void MediaStorageUtil::GetDeviceInfoFromPathImpl(const FilePath& path,
                                                  std::string* device_id,
                                                  string16* device_name,
                                                  FilePath* relative_path) {
   // TODO(vandebo) This needs to be implemented per platform.  Below is no
   // worse than what the code already does.
   // * Find mount point parent (determines relative file path)
   // * Search System monitor, just in case.
   // * If it's a removable device, generate device id, else use device root
   //   path as id
   if (device_id)
     *device_id = MakeDeviceId(FIXED_MASS_STORAGE, path.AsUTF8Unsafe());
   if (device_name)
     *device_name = path.BaseName().LossyDisplayName();
   if (relative_path)
     *relative_path = FilePath();
 }
 #endif
 
 }  // namespace chrome