arc: Support pinned apps across Arc-enabled and Arc-disabled platforms.

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

 // Copyright (c) 2013 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/launcher_context_menu.h"
 
 #include "ash/common/shelf/shelf_item_types.h"
 #include "ash/common/shelf/shelf_model.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shell.h"
@@ skipping 17 matching lines @@
  protected:
   static bool IsItemPresentInMenu(LauncherContextMenu* menu, int command_id) {
     return menu->GetIndexOfCommandId(command_id) != -1;
   }
 
   LauncherContextMenuTest() : profile_(new TestingProfile()) {}
 
   void SetUp() override {
     arc_test_.SetUp(profile_.get());
     ash::test::AshTestBase::SetUp();
-    controller_.reset(new ChromeLauncherController(profile(), &shelf_model_));
+
+    ash::ShelfItem app_list;
+    app_list.type = ash::TYPE_APP_LIST;
+    shelf_model_.Add(app_list);
+
+    controller_.reset(new ChromeLauncherController(
+        profile(), ash::Shell::GetInstance()->shelf_model()));
+    controller_->Init();
   }
 
   void TearDown() override {
     controller_.reset(nullptr);
     ash::test::AshTestBase::TearDown();
   }
 
   LauncherContextMenu* CreateLauncherContextMenu(
       ash::ShelfItemType shelf_item_type) {
     ash::ShelfItem item;
@@ skipping 141 matching lines @@
   arc_test().app_instance()->SendTaskCreated(1, arc_test().fake_apps()[0]);
   menu.reset(new ArcLauncherContextMenu(controller(), &item, shelf));
 
   EXPECT_FALSE(
       IsItemPresentInMenu(menu.get(), LauncherContextMenu::MENU_OPEN_NEW));
   EXPECT_TRUE(IsItemPresentInMenu(menu.get(), LauncherContextMenu::MENU_PIN));
   EXPECT_TRUE(menu->IsCommandIdEnabled(LauncherContextMenu::MENU_PIN));
   EXPECT_TRUE(IsItemPresentInMenu(menu.get(), LauncherContextMenu::MENU_CLOSE));
   EXPECT_TRUE(menu->IsCommandIdEnabled(LauncherContextMenu::MENU_CLOSE));
 }