Arc app integration in shelf launcher context menu

chrome/browser/ui/ash/launcher/desktop_shell_launcher_context_menu.cc

+// Copyright 2016 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/ui/ash/launcher/desktop_shell_launcher_context_menu.h"
+
+DesktopShellLauncherContextMenu::DesktopShellLauncherContextMenu(
+    ChromeLauncherController* controller,
+    const ash::ShelfItem* item,
+    ash::Shelf* shelf)
+    : LauncherContextMenu(controller, item, shelf) {
+  Init();
+}
+
+DesktopShellLauncherContextMenu::~DesktopShellLauncherContextMenu() {}
+
+void DesktopShellLauncherContextMenu::Init() {
+  AddAutohideAlignmentWallpaperMenu();
+}