Add DeviceADPolicyManager to provide AD policy.

chrome/browser/chromeos/settings/session_manager_operation_unittest.cc

Index: chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
diff --git a/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc b/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
index a04ee7c398114ac28f8f97245c96f39a970a9e65..ceefdf8b19a3fa8298e5689ecd762d91a6fbda26 100644
--- a/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
+++ b/chrome/browser/chromeos/settings/session_manager_operation_unittest.cc
@@ -107,6 +107,8 @@ class SessionManagerOperationTest : public testing::Test {
 
 TEST_F(SessionManagerOperationTest, LoadNoPolicyNoKey) {
   LoadSettingsOperation op(
+      false,  // force_key_load

[emaxx, 2016/11/11 15:25:09]

Not insisting, but I saw the following style of commenting more often:
some_value /* argument_name */,

[Thiemo Nagel, 2016/11/16 19:11:01]

Done.

+      true,   // verify_signature
       base::Bind(&SessionManagerOperationTest::OnOperationCompleted,
                  base::Unretained(this)));
 
@@ -126,6 +128,8 @@ TEST_F(SessionManagerOperationTest, LoadNoPolicyNoKey) {
 TEST_F(SessionManagerOperationTest, LoadOwnerKey) {
   owner_key_util_->SetPublicKeyFromPrivateKey(*policy_.GetSigningKey());
   LoadSettingsOperation op(
+      false,  // force_key_load
+      true,   // verify_signature
       base::Bind(&SessionManagerOperationTest::OnOperationCompleted,
                  base::Unretained(this)));
 
@@ -143,6 +147,8 @@ TEST_F(SessionManagerOperationTest, LoadPolicy) {
   owner_key_util_->SetPublicKeyFromPrivateKey(*policy_.GetSigningKey());
   device_settings_test_helper_.set_policy_blob(policy_.GetBlob());
   LoadSettingsOperation op(
+      false,  // force_key_load
+      true,   // verify_signature
       base::Bind(&SessionManagerOperationTest::OnOperationCompleted,
                  base::Unretained(this)));
 
@@ -165,6 +171,8 @@ TEST_F(SessionManagerOperationTest, RestartLoad) {
   owner_key_util_->SetPrivateKey(policy_.GetSigningKey());
   device_settings_test_helper_.set_policy_blob(policy_.GetBlob());
   LoadSettingsOperation op(
+      false,  // force_key_load
+      true,   // verify_signature
       base::Bind(&SessionManagerOperationTest::OnOperationCompleted,
                  base::Unretained(this)));