[Media Galleries] Move RemovableStorageInfo notifications to chrome namespace (part 2)

chrome/browser/media_gallery/media_file_system_registry.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.
 
 // MediaFileSystemRegistry implementation.
 
 #include "chrome/browser/media_gallery/media_file_system_registry.h"
 
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/json/json_writer.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
-#include "base/system_monitor/system_monitor.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/media_gallery/media_file_system_context.h"
 #include "chrome/browser/media_gallery/media_galleries_preferences.h"
 #include "chrome/browser/media_gallery/media_galleries_preferences_factory.h"
 #include "chrome/browser/media_gallery/scoped_mtp_device_map_entry.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/system_monitor/media_storage_util.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_set.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/isolated_context.h"
 
-using base::SystemMonitor;
 using content::BrowserThread;
 using content::NavigationController;
 using content::RenderProcessHost;
 using content::WebContents;
 using fileapi::IsolatedContext;
 
 namespace chrome {
 
 namespace {
 
@@ skipping 407 matching lines @@
                                       callback);
 }
 
 MediaGalleriesPreferences* MediaFileSystemRegistry::GetPreferences(
     Profile* profile) {
   MediaGalleriesPreferences* preferences =
       MediaGalleriesPreferencesFactory::GetForProfile(profile);
   if (ContainsKey(extension_hosts_map_, profile))
     return preferences;
 
-  // SystemMonitor may be NULL in unit tests.
-  SystemMonitor* system_monitor = SystemMonitor::Get();
-  if (!system_monitor)
+  // RemovableStorageNotifications may be NULL in unit tests.
+  RemovableStorageNotifications* notifications =
+      RemovableStorageNotifications::GetInstance();
+  if (!notifications)
     return preferences;
-  std::vector<SystemMonitor::RemovableStorageInfo> existing_devices =
-      system_monitor->GetAttachedRemovableStorage();
+  std::vector<RemovableStorageNotifications::RemovableStorageInfo>
+      existing_devices = notifications->GetAttachedRemovableStorage();
   for (size_t i = 0; i < existing_devices.size(); i++) {
     if (!MediaStorageUtil::IsMediaDevice(existing_devices[i].device_id))
       continue;
     preferences->AddGallery(existing_devices[i].device_id,
                             existing_devices[i].name, FilePath(),
                             false /*not user added*/);
   }
   return preferences;
 }
 
@@ skipping 130 matching lines @@
   }
 
  private:
   MediaFileSystemRegistry* registry_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaFileSystemContextImpl);
 };
 
 MediaFileSystemRegistry::MediaFileSystemRegistry()
     : file_system_context_(new MediaFileSystemContextImpl(this)) {
-  // SystemMonitor may be NULL in unit tests.
-  SystemMonitor* system_monitor = SystemMonitor::Get();
-  if (system_monitor) {
-    system_monitor->AddDevicesChangedObserver(this);
+  // RemovableStorageNotifications may be NULL in unit tests.
+  RemovableStorageNotifications* notifications =
+      RemovableStorageNotifications::GetInstance();
+  if (notifications) {
+    notifications->AddRemovableStorageObserver(this);
 
     // Add the devices that were already present before MediaFileSystemRegistry
     // creation.
-    std::vector<base::SystemMonitor::RemovableStorageInfo> storage_info =
-        system_monitor->GetAttachedRemovableStorage();
+    std::vector<RemovableStorageNotifications::RemovableStorageInfo>
+        storage_info = notifications->GetAttachedRemovableStorage();
     for (size_t i = 0; i < storage_info.size(); ++i)
       transient_device_ids_.DeviceAttached(storage_info[i].device_id);
   }
 }
 
 MediaFileSystemRegistry::~MediaFileSystemRegistry() {
-  // SystemMonitor may be NULL in unit tests.
-  SystemMonitor* system_monitor = SystemMonitor::Get();
-  if (system_monitor)
-    system_monitor->RemoveDevicesChangedObserver(this);
+  // RemovableStorageNotifications may be NULL in unit tests.
+  RemovableStorageNotifications* notifications =
+      RemovableStorageNotifications::GetInstance();
+  if (notifications)
+    notifications->RemoveRemovableStorageObserver(this);
 #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM)
   DCHECK(mtp_device_delegate_map_.empty());
 #endif
 }
 
 void MediaFileSystemRegistry::OnMediaGalleriesRememberedGalleriesChanged(
     PrefServiceBase* prefs) {
   // Find the Profile that contains the source PrefService.
   PrefChangeRegistrarMap::iterator pref_change_it =
       pref_change_registrar_map_.begin();
@@ skipping 71 matching lines @@
 
     PrefChangeRegistrarMap::iterator pref_it =
         pref_change_registrar_map_.find(profile);
     DCHECK(pref_it != pref_change_registrar_map_.end());
     delete pref_it->second;
     pref_change_registrar_map_.erase(pref_it);
   }
 }
 
 }  // namespace chrome