arc: Initial implemetation of Chrome sync for Arc packages.

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 cc551c697ec9292e444db0aab80d1a1eb9d17bf2..01aad319cca8663f8b6e53a4d97eef11382a1dbc 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_test.cc
+++ b/chrome/browser/ui/app_list/arc/arc_app_test.cc
@@ -122,16 +122,22 @@ void ArcAppTest::SetUp(Profile* profile) {
   // Check initial conditions.
   EXPECT_EQ(bridge_service_.get(), arc::ArcBridgeService::Get());
   EXPECT_FALSE(arc::ArcBridgeService::Get()->ready());
-
-  // At this point we should have ArcAppListPrefs as observer of service.
-  EXPECT_TRUE(bridge_service_->HasObserver(arc_app_list_pref_));
-  bridge_service()->SetReady();
 }
 
 void ArcAppTest::TearDown() {
   auth_service_.reset();
 }
 
+void ArcAppTest::StopArcInstance() {
+  bridge_service_->app()->SetInstance(nullptr);
+}
+
+void ArcAppTest::RestartArcInstance() {
+  bridge_service_->app()->SetInstance(nullptr);
+  app_instance_.reset(new arc::FakeAppInstance(arc_app_list_pref_));
+  bridge_service_->app()->SetInstance(app_instance_.get());
+}
+
 const user_manager::User* ArcAppTest::CreateUserAndLogin() {
   const AccountId account_id(AccountId::FromUserEmailGaiaId(
       profile_->GetProfileUserName(), "1234567890"));