Expose signing key from cloud policy stores

chrome/browser/chromeos/policy/device_local_account_policy_store.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_STORE_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_STORE_H_
 
 #include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "components/policy/core/common/cloud/cloud_policy_validator.h"
 #include "components/policy/core/common/cloud/user_cloud_policy_store_base.h"
 
 namespace base {
 class SequencedTaskRunner;
 }
 
 namespace chromeos {
-class DeviceSettingsService;
 class SessionManagerClient;
 }
 
 namespace enterprise_management {
 class PolicyFetchResponse;
 }
 
 namespace policy {
 
 class DeviceLocalAccountPolicyBroker;
 
 // CloudPolicyStore implementation for device-local account policy. Stores/loads
 // policy to/from session_manager.
-class DeviceLocalAccountPolicyStore
-    : public UserCloudPolicyStoreBase {
+class DeviceLocalAccountPolicyStore : public UserCloudPolicyStoreBase {
  public:
   DeviceLocalAccountPolicyStore(
       const std::string& account_id,
       chromeos::SessionManagerClient* client,
       chromeos::DeviceSettingsService* device_settings_service,
       scoped_refptr<base::SequencedTaskRunner> background_task_runner);
   ~DeviceLocalAccountPolicyStore() override;
 
   const std::string& account_id() const { return account_id_; }
 
@@ skipping 36 matching lines @@
   scoped_refptr<base::SequencedTaskRunner> background_task_runner_;
 
   base::WeakPtrFactory<DeviceLocalAccountPolicyStore> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountPolicyStore);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_POLICY_STORE_H_