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

chrome/browser/system_monitor/media_storage_util_chromeos.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.
 
-// Linux specific implementation of chrome::MediaStorageUtil.
+// Chrome OS specific implementation of chrome::MediaStorageUtil.

[kmadhusu, 2012/09/16 22:35:42]

Do not review this file. Just uploaded for reference. After landing,
https://codereview.chromium.org/10909259/, we will not require this file.

[vandebo (ex-Chrome), 2012/09/16 23:03:19]

You can remove it now, since it's still in the previous patch sets.

 
 #include "chrome/browser/system_monitor/media_storage_util.h"
 
-#include "base/callback.h"
+#include "base/file_path.h"
+#include "base/string16.h"
 #include "base/system_monitor/system_monitor.h"
-#include "chrome/browser/system_monitor/removable_device_notifications_linux.h"
+#include "chrome/browser/system_monitor/media_transfer_protocol_device_observer_chromeos.h"
+#include "chrome/browser/system_monitor/removable_device_notifications_chromeos.h"
 
 namespace chrome {
 
+using base::SystemMonitor;
+using chromeos::mtp::MediaTransferProtocolDeviceObserverCros;
+using chromeos::RemovableDeviceNotificationsCros;
+
 // static
 bool MediaStorageUtil::GetDeviceInfoFromPathImpl(const FilePath& path,
                                                  std::string* device_id,
                                                  string16* device_name,
                                                  FilePath* relative_path) {
-  RemovableDeviceNotificationsLinux* device_tracker =
-      RemovableDeviceNotificationsLinux::GetInstance();
-  DCHECK(device_tracker);
+  // Check if the |path| belongs to a removable mass storage device.
+  RemovableDeviceNotificationsCros* mass_storage_tracker =
+      RemovableDeviceNotificationsCros::GetInstance();
+  DCHECK(mass_storage_tracker);
   base::SystemMonitor::RemovableStorageInfo device_info;
-  bool found_device = device_tracker->GetDeviceInfoForPath(path, &device_info);
+  bool found_device = mass_storage_tracker->GetDeviceInfoForPath(path,
+                                                                 &device_info);
+  if (!found_device) {
+    // Check if the |path| belongs to a mtp storage device.
+    MediaTransferProtocolDeviceObserverCros * mtp_device_tracker =
+        MediaTransferProtocolDeviceObserverCros::GetInstance();
+    found_device = mtp_device_tracker->GetStorageInfoForPath(path,
+                                                             &device_info);
+  }
 
   if (found_device && IsRemovableDevice(device_info.device_id)) {
     if (device_id)
       *device_id = device_info.device_id;
     if (device_name)
       *device_name = device_info.name;
     if (relative_path) {
       *relative_path = FilePath();
       FilePath mount_point(device_info.location);
       mount_point.AppendRelativePath(path, relative_path);
     }
     return true;
   }
 
   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();
   return true;
 }
 
 }  // namespace chrome