Media Galleries Partial Deprecation: Remove scan functionality.

chrome/browser/media_galleries/media_galleries_histograms.h

 // Copyright 2013 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_GALLERIES_MEDIA_GALLERIES_HISTOGRAMS_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_GALLERIES_HISTOGRAMS_H_
 
 namespace media_galleries {
 
 enum MediaGalleriesUsages {
   DIALOG_GALLERY_ADDED,
   DIALOG_PERMISSION_ADDED,
   DIALOG_PERMISSION_REMOVED,
   GET_MEDIA_FILE_SYSTEMS,
   PROFILES_WITH_USAGE,
   SHOW_DIALOG,
   SAVE_DIALOG,
   WEBUI_ADD_GALLERY,
   WEBUI_FORGET_GALLERY,
   PREFS_INITIALIZED,
   PREFS_INITIALIZED_ERROR,
   GET_ALL_MEDIA_FILE_SYSTEM_METADATA,
   GET_METADATA,
   ADD_USER_SELECTED_FOLDER,
-  START_MEDIA_SCAN,
-  CANCEL_MEDIA_SCAN,
-  ADD_SCAN_RESULTS,
-  SCAN_FINISHED,
-  ADD_SCAN_RESULTS_CANCELLED,
-  ADD_SCAN_RESULTS_ACCEPTED,
-  ADD_SCAN_RESULTS_FORGET_GALLERY,
+  DELETED_START_MEDIA_SCAN,
+  DELETED_CANCEL_MEDIA_SCAN,
+  DELETED_ADD_SCAN_RESULTS,
+  DELETED_SCAN_FINISHED,
+  DELETED_ADD_SCAN_RESULTS_CANCELLED,
+  DELETED_ADD_SCAN_RESULTS_ACCEPTED,
+  DELETED_ADD_SCAN_RESULTS_FORGET_GALLERY,
   DIALOG_FORGET_GALLERY,
   DROP_PERMISSION_FOR_MEDIA_FILE_SYSTEM,
   GET_ALL_GALLERY_WATCH,
   REMOVE_ALL_GALLERY_WATCH,
   ITUNES_FILE_SYSTEM_USED,
   PICASA_FILE_SYSTEM_USED,
   IPHOTO_FILE_SYSTEM_USED,
   MEDIA_GALLERIES_NUM_USAGES
 };
 
 void UsageCount(MediaGalleriesUsages usage);
 
 }  // namespace media_galleries
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_GALLERIES_HISTOGRAMS_H_