Removed experimental app list flags. Experimental is now the only way.

ui/app_list/app_list_switches.h

Index: ui/app_list/app_list_switches.h
diff --git a/ui/app_list/app_list_switches.h b/ui/app_list/app_list_switches.h
index 05c6f0bd763f66ae7db8fe6756727328c75b2249..1d07d8e2c1762cf88772194dc13f59869027ad74 100644
--- a/ui/app_list/app_list_switches.h
+++ b/ui/app_list/app_list_switches.h
@@ -15,9 +15,6 @@ namespace switches {
 APP_LIST_EXPORT extern const char kCustomLauncherPage[];
 APP_LIST_EXPORT extern const char kDisableAppListDismissOnBlur[];
 APP_LIST_EXPORT extern const char kEnableAppList[];
-APP_LIST_EXPORT extern const char kEnableCenteredAppList[];
-APP_LIST_EXPORT extern const char kEnableExperimentalAppList[];
-APP_LIST_EXPORT extern const char kDisableExperimentalAppList[];
 APP_LIST_EXPORT extern const char kEnableSyncAppList[];
 APP_LIST_EXPORT extern const char kDisableSyncAppList[];
 APP_LIST_EXPORT extern const char kEnableDriveSearchInChromeLauncher[];
@@ -30,12 +27,9 @@ bool APP_LIST_EXPORT IsFolderUIEnabled();
 
 bool APP_LIST_EXPORT IsVoiceSearchEnabled();
 
+// Deprecated. These always return true.
+// TODO(mgiuca): Remove (https://crbug.com/531059).
 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();
 
 // Determines whether the app list should not be dismissed on focus loss.