Migrate --enable-arc and --arc-available part 1.

chrome/browser/ui/app_list/arc/arc_app_test.cc

Index: chrome/browser/ui/app_list/arc/arc_app_test.cc
diff --git a/chrome/browser/ui/app_list/arc/arc_app_test.cc b/chrome/browser/ui/app_list/arc/arc_app_test.cc
index 0d21c988032617f7a7fbf1b3c439e12c2b11c2dc..a7935a8a258b8e2c772c11234993daa6a65abc07 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_test.cc
+++ b/chrome/browser/ui/app_list/arc/arc_app_test.cc
@@ -15,11 +15,11 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs_factory.h"
-#include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/arc/arc_service_manager.h"
 #include "components/arc/arc_session_runner.h"
+#include "components/arc/arc_util.h"
 #include "components/arc/test/fake_app_instance.h"
 #include "components/arc/test/fake_arc_session.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -60,8 +60,8 @@ void ArcAppTest::SetUp(Profile* profile) {
     chromeos::DBusThreadManager::Initialize();
     dbus_thread_manager_initialized_ = true;
   }
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(
-      chromeos::switches::kEnableArc);
+  arc::SetArcAvailableCommandLineForTesting(
+      base::CommandLine::ForCurrentProcess());
   DCHECK(!profile_);
   profile_ = profile;
   const user_manager::User* user = CreateUserAndLogin();