s/\bArc\b/ARC/g for ARC related code.

chrome/browser/ui/app_list/app_context_menu_unittest.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 <map>
 #include <memory>
 #include <string>
 #include <unordered_set>
 #include <vector>
 
@@ skipping 367 matching lines @@
   EXPECT_EQ(0u, arc_test.app_instance()->launch_requests().size());
 
   menu->ActivatedAt(0);
 
   const std::vector<std::unique_ptr<arc::FakeAppInstance::Request>>&
       launch_requests = arc_test.app_instance()->launch_requests();
   ASSERT_EQ(1u, launch_requests.size());
   EXPECT_TRUE(launch_requests[0]->IsForApp(app_info));
 
   controller()->SetAppOpen(app_id, true);
-  // It is not expected that menu model is unchanged on GetContextMenuModel. Arc
-  // app menu requires model to be recalculated.
+  // It is not expected that menu model is unchanged on GetContextMenuModel.
+  // ARC app menu requires model to be recalculated.
   menu = item.GetContextMenuModel();
   ASSERT_EQ(4, menu->GetItemCount());
   ValidateItemState(menu, 0, MenuState(app_list::AppContextMenu::TOGGLE_PIN));
   ValidateItemState(menu, 1, MenuState());  // separator
   ValidateItemState(menu, 2, MenuState(app_list::AppContextMenu::UNINSTALL));
   ValidateItemState(
       menu, 3, MenuState(app_list::AppContextMenu::SHOW_APP_INFO));
 
   // This makes all apps non-ready.
   controller()->SetAppOpen(app_id, false);
@@ skipping 87 matching lines @@
     ValidateItemState(menu, 0, MenuState(app_list::AppContextMenu::LAUNCH_NEW));
     ValidateItemState(menu, 1, MenuState());  // separator
     ValidateItemState(menu, 2, MenuState(app_list::AppContextMenu::TOGGLE_PIN));
     ValidateItemState(menu, 3, MenuState());  // separator
     ValidateItemState(
         menu, 4, MenuState(app_list::AppContextMenu::SHOW_APP_INFO));
   }
 }
 
 #endif