Respect disabling removable devices policy for enterprise users.

chrome/browser/chromeos/file_manager/volume_manager.cc

 // Copyright 2013 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 "chrome/browser/chromeos/file_manager/volume_manager.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 614 matching lines @@
              mounted_volumes_.begin();
          !from_current_profile && iter != mounted_volumes_.end();
          ++iter) {
       if (iter->second.mount_path.IsParent(volume_info.source_path))
         from_current_profile = true;
     }
     if (!from_current_profile)
       return;
   }
 
+  // Filter out removable disks if forbidden by policy for this profile.
+  if (volume_info.type == VOLUME_TYPE_REMOVABLE_DISK_PARTITION &&
+      profile_->GetPrefs()->GetBoolean(prefs::kExternalStorageDisabled)) {
+    return;
+  }
+
   if (error_code == chromeos::MOUNT_ERROR_NONE || volume_info.mount_condition)
     mounted_volumes_[volume_info.volume_id] = volume_info;
 
   FOR_EACH_OBSERVER(VolumeManagerObserver,
                     observers_,
                     OnVolumeMounted(error_code, volume_info, is_remounting));
 }
 
 void VolumeManager::DoUnmountEvent(chromeos::MountError error_code,
                                    const VolumeInfo& volume_info) {
   if (mounted_volumes_.find(volume_info.volume_id) == mounted_volumes_.end())
     return;
   if (error_code == chromeos::MOUNT_ERROR_NONE)
     mounted_volumes_.erase(volume_info.volume_id);
 
   FOR_EACH_OBSERVER(VolumeManagerObserver,
                     observers_,
                     OnVolumeUnmounted(error_code, volume_info));
 }
 
 }  // namespace file_manager