Fix Arc integration test.

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

Index: chrome/browser/sync/test/integration/sync_test.cc
diff --git a/chrome/browser/sync/test/integration/sync_test.cc b/chrome/browser/sync/test/integration/sync_test.cc
index f40d1f98fd44fbfb4f595c9aa98392743c0720e2..782c4f5010ac05d20d64c01e9dfd98c4f0563e2e 100644
--- a/chrome/browser/sync/test/integration/sync_test.cc
+++ b/chrome/browser/sync/test/integration/sync_test.cc
@@ -90,6 +90,7 @@
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/chromeos_switches.h"
+#include "components/arc/arc_util.h"
 #endif
 
 using browser_sync::ProfileSyncService;
@@ -298,6 +299,7 @@ void SyncTest::SetUpCommandLine(base::CommandLine* cl) {
 
 #if defined(OS_CHROMEOS)
   cl->AppendSwitch(chromeos::switches::kIgnoreUserProfileMappingForTests);
+  arc::SetArcAvailableCommandLineForTesting(cl);

[hidehiko, 2017/02/24 18:22:26]

Could you define the flag in each test?
As ARC does not fully support multi-profile run,
and we're adding some workaround for {Single,Two}ClientArcSyncTest only,
so IMHO it's better to avoid running ARC for other tests.

[lgcheng, 2017/02/25 01:40:38]

Done.

 #endif
 }