Do not show shelf or top chrome hints while in Ash immersive mode

ash/common/shelf/shelf_layout_manager.cc

Index: ash/common/shelf/shelf_layout_manager.cc
diff --git a/ash/common/shelf/shelf_layout_manager.cc b/ash/common/shelf/shelf_layout_manager.cc
index 25202a316f46bd8c07fa00c6c95451889f301a12..92a4c75ae32c3f900e096a6746fff05c385af228 100644
--- a/ash/common/shelf/shelf_layout_manager.cc
+++ b/ash/common/shelf/shelf_layout_manager.cc
@@ -1019,7 +1019,7 @@ float ShelfLayoutManager::ComputeTargetOpacity(const State& state) {
   // In Chrome OS Material Design, when shelf is hidden during auto hide state,
   // target bounds are also hidden. So the window can extend to the edge of
   // screen.
-  if (ash::MaterialDesignController::IsShelfMaterial() ||
+  if (ash::MaterialDesignController::IsImmersiveModeMaterial() ||
       invisible_auto_hide_shelf_) {
     return (state.visibility_state == SHELF_AUTO_HIDE &&
             state.auto_hide_state == SHELF_AUTO_HIDE_SHOWN)