Add policy for ash launcher auto-hide behavior

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index 2cf7c5a5ecb403d6acc2bd1332bd5c50921bfbe3..f2e975a5b4d363d0a9b39f3f15f7db7314c8ff52 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -716,17 +716,6 @@ ShelfAutoHideBehavior Shell::GetShelfAutoHideBehavior(
   return GetRootWindowController(root_window)->GetShelfAutoHideBehavior();
 }
 
-bool Shell::IsShelfAutoHideMenuHideChecked(aura::RootWindow* root_window) {
-  return GetRootWindowController(root_window)->GetShelfAutoHideBehavior() ==
-      ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS;
-}
-
-ShelfAutoHideBehavior Shell::GetToggledShelfAutoHideBehavior(
-    aura::RootWindow* root_window) {
-  return GetRootWindowController(root_window)->
-      GetToggledShelfAutoHideBehavior();
-}
-
 void Shell::SetShelfAlignment(ShelfAlignment alignment,
                               aura::RootWindow* root_window) {
   if (GetRootWindowController(root_window)->SetShelfAlignment(alignment))