Plumb file system name down from MediaFileSystemRegistry.

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 21 matching lines @@
 namespace fileapi {
 class IsolatedContext;
 }
 
 namespace chrome {
 
 class MediaFileSystemRegistry
     : public base::SystemMonitor::DevicesChangedObserver,
       public content::NotificationObserver {
  public:
-  // (Filesystem ID, path)
-  typedef std::pair<std::string, FilePath> MediaFSIDAndPath;
+  struct MediaFSInfo {
+    std::string name;
+    std::string fsid;
+    FilePath path;
+  };
 
   // The instance is lazily created per browser process.
   static MediaFileSystemRegistry* GetInstance();
 
   // Returns the list of media filesystem IDs and paths for a given RPH.
   // Called on the UI thread.
-  std::vector<MediaFSIDAndPath> GetMediaFileSystems(
+  std::vector<MediaFSInfo> GetMediaFileSystemsForExtension(
       const content::RenderProcessHost* rph,
       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;
@@ skipping 34 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_