Fix Arc integration test.

chrome/browser/chromeos/arc/arc_util.cc

Index: chrome/browser/chromeos/arc/arc_util.cc
diff --git a/chrome/browser/chromeos/arc/arc_util.cc b/chrome/browser/chromeos/arc/arc_util.cc
index 49b6f04bdf062d1d444ff68f48c80ec53804ce3b..3b2221b7353fb62b4bf4bab9ef767a13db818ada 100644
--- a/chrome/browser/chromeos/arc/arc_util.cc
+++ b/chrome/browser/chromeos/arc/arc_util.cc
@@ -22,9 +22,17 @@ namespace {
 // Let IsAllowedForProfile() return "false" for any profile.
 bool g_disallow_for_testing = false;
 
+// Let IsAllowedForProfile() return "true" for any profile in sync test.
+bool g_allow_for_sync_testing = false;
+
 }  // namespace
 
 bool IsArcAllowedForProfile(const Profile* profile) {
+  if (g_allow_for_sync_testing) {
+    VLOG(1) << "ARC is allowed for sync test.";
+    return true;
+  }
+
   if (g_disallow_for_testing) {
     VLOG(1) << "ARC is disallowed for testing.";
     return false;
@@ -98,6 +106,10 @@ void DisallowArcForTesting() {
   g_disallow_for_testing = true;
 }
 
+void SetArcAllowedForSyncTesting() {
+  g_allow_for_sync_testing = true;
+}
+
 bool IsArcPlayStoreEnabledForProfile(const Profile* profile) {
   return IsArcAllowedForProfile(profile) &&
          profile->GetPrefs()->GetBoolean(prefs::kArcEnabled);