Regularize ownerships and lifecycle for storage monitor platform classes.

chrome/browser/storage_monitor/storage_monitor_mac.h

Index: chrome/browser/storage_monitor/storage_monitor_mac.h
diff --git a/chrome/browser/storage_monitor/storage_monitor_mac.h b/chrome/browser/storage_monitor/storage_monitor_mac.h
index 89995a5b285726ef46d5a500aafec3802c30723b..e52efe14738fd65792806a16eaaa896d196eb8bb 100644
--- a/chrome/browser/storage_monitor/storage_monitor_mac.h
+++ b/chrome/browser/storage_monitor/storage_monitor_mac.h
@@ -15,6 +15,8 @@
 
 namespace chrome {
 
+class ImageCaptureDeviceManager;
+
 // This class posts notifications to listeners when a new disk
 // is attached, removed, or changed.
 class StorageMonitorMac
@@ -30,6 +32,8 @@ class StorageMonitorMac
   // Should only be called by browser start up code.  Use GetInstance() instead.
   StorageMonitorMac();
 
+  void Init();
+
   void UpdateDisk(const DiskInfoMac& info, UpdateType update_type);
 
   virtual bool GetStorageInfoForPath(
@@ -65,6 +69,8 @@ class StorageMonitorMac
   // posted.
   std::map<std::string, DiskInfoMac> disk_info_map_;
 
+  scoped_ptr<chrome::ImageCaptureDeviceManager> image_capture_device_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(StorageMonitorMac);
 };