ash: Fix shelf auto hide behavior not persisted regression.

chrome/common/pref_names.cc

 // 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.
 
 #include "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 
 namespace prefs {
 
@@ skipping 1782 matching lines @@
 const char kComponentUpdaterState[] = "component_updater.state";
 
 // Boolean pref indicating whether the session restore dialog has been shown.
 const char kRestoreSessionStateDialogShown[] =
     "restore_session_state.dialog_shown";
 
 // Boolean that is true if Web Intents is enabled.
 const char kWebIntentsEnabled[] = "webintents.enabled";
 
 #if defined(USE_AURA)
-// Boolean value indicating whether the shelf always hides.
-const char kAlwaysAutoHideShelf[] =
-    "auto_hide_shelf";
 // String value corresponding to ash::Shell::ShelfAutoHideBehavior.
 const char kShelfAutoHideBehavior[] =
     "auto_hide_behavior";
 // Boolean value indicating whether to use default pinned apps.
 const char kUseDefaultPinnedApps[] = "use_default_pinned_apps";
 const char kPinnedLauncherApps[] =
     "pinned_launcher_apps";
 
 const char kLongPressTimeInSeconds[] =
     "gesture.long_press_time_in_seconds";
@@ skipping 26 matching lines @@
 const char kRailBreakProportion[] =
     "gesture.rail_break_proportion";
 const char kRailStartProportion[] =
     "gesture.rail_start_proportion";
 #endif
 
 // Indicates whether the browser is in managed mode.
 const char kInManagedMode[] = "managed_mode";
 
 }  // namespace prefs