make media gallery directory tooltips in media gallery config dialog absolute paths

chrome/browser/media_gallery/media_galleries_preferences.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_MEDIA_GALLERY_MEDIA_GALLERIES_PREFERENCES_H_
 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_GALLERIES_PREFERENCES_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 28 matching lines @@
 struct MediaGalleryPrefInfo {
   enum Type {
     kAutoDetected,  // Auto added to the list of galleries.
     kUserAdded,     // Explicitly added by the user.
     kBlackListed,   // Auto added but then removed by the user.
   };
 
   MediaGalleryPrefInfo();
   ~MediaGalleryPrefInfo();
 
+  // The absolute path of the gallery.
+  FilePath AbsolutePath() const;
+
   // The ID that identifies this gallery in this Profile.
   MediaGalleryPrefId pref_id;
 
   // The user-visible name of this gallery.
   string16 display_name;
 
   // A string which uniquely and persistently identifies the device that the
   // gallery lives on.
   std::string device_id;
 
@@ skipping 77 matching lines @@
   DeviceIdPrefIdsMap device_map_;
 
   extensions::ExtensionPrefs* GetExtensionPrefs() const;
 
   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesPreferences);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_GALLERIES_PREFERENCES_H_