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

chrome/browser/sync/test/integration/sync_arc_package_helper.cc

Index: chrome/browser/sync/test/integration/sync_arc_package_helper.cc
diff --git a/chrome/browser/sync/test/integration/sync_arc_package_helper.cc b/chrome/browser/sync/test/integration/sync_arc_package_helper.cc
index 7632bd224ed41c6cf21df0891c68c29da15e8c67..961c78adcf1bcdfae67972e11614ba36854b6424 100644
--- a/chrome/browser/sync/test/integration/sync_arc_package_helper.cc
+++ b/chrome/browser/sync/test/integration/sync_arc_package_helper.cc
@@ -69,8 +69,6 @@ void SyncArcPackageHelper::SetupTest(SyncTest* test) {
 
   user_manager_enabler_ = base::MakeUnique<chromeos::ScopedUserManagerEnabler>(
       new chromeos::FakeChromeUserManager());
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(
-      chromeos::switches::kEnableArc);
   ArcAppListPrefsFactory::SetFactoryForSyncTest();
   size_t id = 0;
   for (auto* profile : test_->GetAllProfiles())
@@ -145,8 +143,6 @@ bool SyncArcPackageHelper::AllProfilesHaveSamePackageDetails() {
 
 void SyncArcPackageHelper::SetupArcService(Profile* profile, size_t id) {
   DCHECK(profile);
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(
-      chromeos::switches::kEnableArc);
   const user_manager::User* user = CreateUserAndLogin(profile, id);
   // Have the user-to-profile mapping ready to avoid using the real profile
   // manager (which is null).