StorageMonitor: Make StorageInfo a class.

components/storage_monitor/storage_info.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_
 #define COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_
 
 #include "base/files/file_path.h"
 #include "base/strings/string16.h"
 
-struct StorageInfo {
+class StorageInfo {
  public:
   enum Type {
     // A removable mass storage device with a DCIM directory.
     REMOVABLE_MASS_STORAGE_WITH_DCIM,
     // A removable mass storage device without a DCIM directory.
     REMOVABLE_MASS_STORAGE_NO_DCIM,
     // A fixed mass storage device.
     FIXED_MASS_STORAGE,
     // A MTP or PTP device.
     MTP_OR_PTP,
@@ skipping 84 matching lines @@
   // Model name for the removable device. (Human readable)
   // May be empty if not collected.
   base::string16 model_name_;
 
   // Size of the removable device in bytes.
   // Zero if not collected or unknown.
   uint64 total_size_in_bytes_;
 };
 
 #endif  // COMPONENTS_STORAGE_MONITOR_STORAGE_INFO_H_