Hide the tab indicators and the shelf when in immersive + tab fullscreen

chrome/browser/fullscreen_ash.cc

Index: chrome/browser/fullscreen_ash.cc
diff --git a/chrome/browser/fullscreen_ash.cc b/chrome/browser/fullscreen_ash.cc
deleted file mode 100644
index e8dd0d298bf724d444a505b4d4f8df63c154c831..0000000000000000000000000000000000000000
--- a/chrome/browser/fullscreen_ash.cc
+++ /dev/null
@@ -1,14 +0,0 @@
-// 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/browser/fullscreen.h"
-
-#include "ash/wm/window_util.h"
-
-bool IsFullScreenMode() {
-  // This is used only by notification_ui_manager.cc. On aura, notification
-  // will be managed in panel. This is temporary to get certain feature running
-  // until we implement it for aura.
-  return ash::wm::IsActiveWindowFullscreen();
-}