Add gallery permissions to Media Galleries Preferences

chrome/browser/media_gallery/media_file_system_registry.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.
 
 // MediaFileSystemRegistry registers pictures directories and media devices as
 // File API filesystems and keeps track of the path to filesystem ID mappings.
 
 #ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
 
@@ skipping 44 matching lines @@
       const extensions::Extension& extension);
 
   // base::SystemMonitor::DevicesChangedObserver implementation.
   virtual void OnMediaDeviceDetached(const std::string& id) OVERRIDE;
 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  std::string GetDeviceIdFromPath(const FilePath& path);

[Lei Zhang, 2012/08/03 19:22:04]

nit: const and return const std::string& ?

[vandebo (ex-Chrome), 2012/08/03 20:27:27]

const Done.  method may create the return value though.

+
  private:
   friend struct base::DefaultLazyInstanceTraits<MediaFileSystemRegistry>;
 
   // Mapping of media directories to filesystem IDs.
   typedef std::map<FilePath, std::string> MediaPathToFSIDMap;
 
   // Mapping of RPH to MediaPathToFSIDMaps.
   typedef std::map<const content::RenderProcessHost*,
                    MediaPathToFSIDMap> ChildIdToMediaFSMap;
 
@@ skipping 23 matching lines @@
 
   // Is only used on the UI thread.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_