Add a receiver interface to RemovableStorageNotifications.

chrome/browser/system_monitor/removable_device_notifications_window_win.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.
 
 #include "chrome/browser/system_monitor/removable_device_notifications_window_win.h"
 
 #include <windows.h>
 #include <dbt.h>
 #include <fileapi.h>
 
@@ skipping 25 matching lines @@
     RemovableDeviceNotificationsWindowWin(
     VolumeMountWatcherWin* volume_mount_watcher,
     PortableDeviceWatcherWin* portable_device_watcher)
     : window_class_(0),
       instance_(NULL),
       window_(NULL),
       volume_mount_watcher_(volume_mount_watcher),
       portable_device_watcher_(portable_device_watcher) {
   DCHECK(volume_mount_watcher_);
   DCHECK(portable_device_watcher_);
+  volume_mount_watcher_->SetNotifications(receiver());
+  portable_device_watcher_->SetNotifications(receiver());
 }
 
 RemovableDeviceNotificationsWindowWin::
     ~RemovableDeviceNotificationsWindowWin() {
+  volume_mount_watcher_->SetNotifications(NULL);
+  portable_device_watcher_->SetNotifications(NULL);
+
   if (window_)
     DestroyWindow(window_);
 
   if (window_class_)
     UnregisterClass(MAKEINTATOM(window_class_), instance_);
 }
 
 void RemovableDeviceNotificationsWindowWin::Init() {
   WNDCLASSEX window_class;
   base::win::InitializeWindowClass(
@@ skipping 108 matching lines @@
                                               unique_id, name, removable);
 }
 
 void RemovableDeviceNotificationsWindowWin::OnDeviceChange(UINT event_type,
                                                            LPARAM data) {
   volume_mount_watcher_->OnWindowMessage(event_type, data);
   portable_device_watcher_->OnWindowMessage(event_type, data);
 }
 
 }  // namespace chrome