Add a receiver interface to RemovableStorageNotifications.

chrome/browser/system_monitor/portable_device_watcher_win.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYSTEM_MONITOR_PORTABLE_DEVICE_WATCHER_WIN_H_
 #define CHROME_BROWSER_SYSTEM_MONITOR_PORTABLE_DEVICE_WATCHER_WIN_H_
 
 #include <portabledeviceapi.h>
 
 #include <map>
@@ skipping 73 matching lines @@
   // identifier.
   virtual bool GetMTPStorageInfoFromDeviceId(
       const std::string& storage_device_id,
       string16* device_location,
       string16* storage_object_id) const;
 
   // Constructs and returns a storage path from storage unique identifier.
   static string16 GetStoragePathFromStorageId(
       const std::string& storage_unique_id);
 
+  // Set the volume notifications object to be used when new
+  // devices are found.
+  void SetNotifications(RemovableStorageNotifications::Receiver* notifications);
+
  private:
   friend class test::TestPortableDeviceWatcherWin;
 
   // Key: MTP device storage unique id.
   // Value: Metadata for the given storage.
   typedef std::map<std::string, RemovableStorageNotifications::StorageInfo>
       MTPStorageMap;
 
   // Key: MTP device plug and play ID string.
   // Value: Vector of device storage objects.
@@ skipping 21 matching lines @@
   // Attached media transfer protocol device storage objects map.
   MTPStorageMap storage_map_;
 
   // The task runner used to execute tasks that may take a long time and thus
   // should not be performed on the UI thread.
   scoped_refptr<base::SequencedTaskRunner> media_task_runner_;
 
   // Used by |media_task_runner_| to create cancelable callbacks.
   base::WeakPtrFactory<PortableDeviceWatcherWin> weak_ptr_factory_;
 
+  // The notifications object to use to signal newly attached devices.
+  RemovableStorageNotifications::Receiver* storage_notifications_;
+
   DISALLOW_COPY_AND_ASSIGN(PortableDeviceWatcherWin);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_SYSTEM_MONITOR_PORTABLE_DEVICE_WATCHER_WIN_H_