[StorageMonitor] Handle EjectDevice call for MTP devices

chrome/browser/storage_monitor/image_capture_device_manager.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_IMAGE_CAPTURE_DEVICE_MANAGER_H_
 #define CHROME_BROWSER_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_MANAGER_H_
 
 #import <Foundation/Foundation.h>
 #include <string>
 
@@ skipping 20 matching lines @@
   // and taking the unique ID output.
   static ImageCaptureDevice* deviceForUUID(const std::string& uuid);
 
   // Returns a weak pointer to the internal ImageCapture interface protocol.
   id<ICDeviceBrowserDelegate> device_browser();
 
   // Sets the receiver for device attach/detach notifications.
   // TODO(gbillock): Move this to be a constructor argument.
   void SetNotifications(StorageMonitor::Receiver* notifications);
 
+  // Eject the given device. The ID passed is not the device ID, but the
+  // ImageCapture UUID.
+  void EjectDevice(const std::string& uuid,
+                   base::Callback<void(StorageMonitor::EjectStatus)> callback);
+
  private:
   base::scoped_nsobject<ImageCaptureDeviceManagerImpl> device_browser_;
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_STORAGE_MONITOR_IMAGE_CAPTURE_DEVICE_MANAGER_H_