Revert of Add a has_media flag to VolumeMetadata.

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/files/file_path.h"
 #include "base/logging.h"
@@ skipping 161 matching lines @@
   volume_info.source_path = base::FilePath(mount_point.source_path);
   volume_info.mount_path = base::FilePath(mount_point.mount_path);
   volume_info.mount_condition = mount_point.mount_condition;
   volume_info.volume_label = volume_info.mount_path.BaseName().AsUTF8Unsafe();
   if (disk) {
     volume_info.device_type = disk->device_type();
     volume_info.system_path_prefix =
         base::FilePath(disk->system_path_prefix());
     volume_info.is_parent = disk->is_parent();
     volume_info.is_read_only = disk->is_read_only();
-    volume_info.has_media = disk->has_media();
   } else {
     volume_info.device_type = chromeos::DEVICE_TYPE_UNKNOWN;
     volume_info.is_parent = false;
     volume_info.is_read_only =
         (mount_point.mount_type == chromeos::MOUNT_TYPE_ARCHIVE);
-    volume_info.has_media = false;
   }
   volume_info.volume_id = GenerateVolumeId(volume_info);
 
   return volume_info;
 }
 
 VolumeInfo CreateProvidedFileSystemVolumeInfo(
     const chromeos::file_system_provider::ProvidedFileSystemInfo&
         file_system_info) {
   VolumeInfo volume_info;
@@ skipping 594 matching lines @@
     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