Revert "Abandon user sign in when policy is retrieved before session started."

chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h

Index: chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h
diff --git a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h
index 5d4e9f61e70a67b37669e99fd63947fc12e2c8dc..4c4021890eae7af03bba8576cec527451d3511eb 100644
--- a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h
+++ b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.h
@@ -15,7 +15,6 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chromeos/dbus/dbus_method_call_status.h"
-#include "chromeos/dbus/session_manager_client.h"
 #include "components/policy/core/common/cloud/cloud_policy_validator.h"
 #include "components/policy/core/common/cloud/user_cloud_policy_store_base.h"
 #include "components/signin/core/account_id/account_id.h"
@@ -26,6 +25,7 @@ class SequencedTaskRunner;
 
 namespace chromeos {
 class CryptohomeClient;
+class SessionManagerClient;
 }
 
 namespace policy {
@@ -71,9 +71,7 @@ class UserCloudPolicyStoreChromeOS : public UserCloudPolicyStoreBase {
   void OnPolicyStored(bool success);
 
   // Called back from SessionManagerClient for policy load operations.
-  void OnPolicyRetrieved(
-      const std::string& policy_blob,
-      chromeos::SessionManagerClient::RetrievePolicyResponseType response);
+  void OnPolicyRetrieved(const std::string& policy_blob);
 
   // Starts validation of the loaded |policy| before installing it.
   void ValidateRetrievedPolicy(