Regularize ownerships and lifecycle for storage monitor platform classes.

chrome/browser/storage_monitor/storage_monitor_mac.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_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 #define CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 
 #include <DiskArbitration/DiskArbitration.h>
 #include <map>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/storage_monitor/disk_info_mac.h"
 #include "chrome/browser/storage_monitor/storage_monitor.h"
 
 namespace chrome {
 
+class ImageCaptureDeviceManager;
+
 // This class posts notifications to listeners when a new disk
 // is attached, removed, or changed.
 class StorageMonitorMac
     : public StorageMonitor,
       public base::RefCountedThreadSafe<StorageMonitorMac> {
  public:
   enum UpdateType {
     UPDATE_DEVICE_ADDED,
     UPDATE_DEVICE_CHANGED,
     UPDATE_DEVICE_REMOVED,
   };
 
   // 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(
       const base::FilePath& path,
       StorageInfo* device_info) const OVERRIDE;
 
   // Returns the storage size of the device present at |location|. If the
   // device information is unavailable, returns zero. |location| must be a
   // top-level mount point.
   virtual uint64 GetStorageSize(const std::string& location) const OVERRIDE;
@@ skipping 15 matching lines @@
   bool ShouldPostNotificationForDisk(const DiskInfoMac& info) const;
   bool FindDiskWithMountPoint(const base::FilePath& mount_point,
                               DiskInfoMac* info) const;
 
   base::mac::ScopedCFTypeRef<DASessionRef> session_;
   // Maps disk bsd names to disk info objects. This map tracks all mountable
   // devices on the system though only notifications for removable devices are
   // posted.
   std::map<std::string, DiskInfoMac> disk_info_map_;
 
+  scoped_ptr<chrome::ImageCaptureDeviceManager> image_capture_device_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(StorageMonitorMac);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_