Revert of Use experimental app list position whenever virtual keyboard is enabled.

ui/app_list/app_list_switches.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 UI_APP_LIST_APP_LIST_SWITCHES_H_
 #define UI_APP_LIST_APP_LIST_SWITCHES_H_
 
 #include "ui/app_list/app_list_export.h"
 
 namespace app_list {
@@ skipping 11 matching lines @@
 bool APP_LIST_EXPORT IsAppListSyncEnabled();
 
 bool APP_LIST_EXPORT IsFolderUIEnabled();
 
 bool APP_LIST_EXPORT IsVoiceSearchEnabled();
 
 bool APP_LIST_EXPORT IsAppInfoEnabled();
 
 bool APP_LIST_EXPORT IsExperimentalAppListEnabled();
 
-// Determines whether either command-line switch was given for enabling the
-// centered app list position. Do not use this when positioning the app list;
-// instead use AppListViewDelegate::ShouldCenterWindow. It checks a superset of
-// the conditions that trigger the position.
 bool APP_LIST_EXPORT IsCenteredAppListEnabled();
 
 }  // namespace switches
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_APP_LIST_SWITCHES_H_