Add policy for ash launcher auto-hide behavior

ash/root_window_controller.cc

Index: ash/root_window_controller.cc
diff --git a/ash/root_window_controller.cc b/ash/root_window_controller.cc
index cc6d2d4ae4b279ffd95f262a87daa75296d8d66f..77a096cf4afda5d8c7950d9f798357a8e3de165a 100644
--- a/ash/root_window_controller.cc
+++ b/ash/root_window_controller.cc
@@ -486,17 +486,6 @@ ShelfAlignment RootWindowController::GetShelfAlignment() {
   return shelf_->alignment();
 }
 
-bool RootWindowController::IsShelfAutoHideMenuHideChecked() {
-  return GetShelfAutoHideBehavior() == ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
-}
-
-ShelfAutoHideBehavior
-RootWindowController::GetToggledShelfAutoHideBehavior() {
-  return IsShelfAutoHideMenuHideChecked() ?
-      ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER :
-      ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowController, private: