Make GetPolicies() return null for unmanaged users

chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc

Index: chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc
diff --git a/chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc b/chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc
index 1c4b4a2e65e6e3b3938c709d7b17c603fbc3c08c..4b3f7f1c12c710c41c3820956d0f01201c18a9cc 100644
--- a/chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc
+++ b/chrome/browser/chromeos/arc/arc_policy_bridge_unittest.cc
@@ -30,6 +30,7 @@ class ArcPolicyBridgeTest : public testing::Test {
     bridge_service_.reset(new FakeArcBridgeService());
     policy_bridge_.reset(
         new ArcPolicyBridge(bridge_service_.get(), &policy_service_));
+    policy_bridge_->OverrideIsManagedForTesting(true);
 
     EXPECT_CALL(policy_service_,
                 GetPolicies(policy::PolicyNamespace(
@@ -70,6 +71,11 @@ class ArcPolicyBridgeTest : public testing::Test {
   DISALLOW_COPY_AND_ASSIGN(ArcPolicyBridgeTest);
 };
 
+TEST_F(ArcPolicyBridgeTest, UnmanagedTest) {
+  policy_bridge()->OverrideIsManagedForTesting(false);
+  policy_bridge()->GetPolicies(PolicyStringCallback(nullptr));
+}
+
 TEST_F(ArcPolicyBridgeTest, EmptyPolicyTest) {
   // No policy is set, result should be empty.
   policy_bridge()->GetPolicies(PolicyStringCallback("{}"));