Revert 154457 - Switch from SignedSettings to DeviceSettingsService.

chrome/browser/policy/device_policy_cache.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_POLICY_DEVICE_POLICY_CACHE_H_
 #define CHROME_BROWSER_POLICY_DEVICE_POLICY_CACHE_H_
 
 #include "base/memory/weak_ptr.h"
-#include "chrome/browser/chromeos/settings/device_settings_service.h"
+#include "chrome/browser/chromeos/settings/signed_settings.h"
 #include "chrome/browser/policy/cloud_policy_cache_base.h"
 
+namespace chromeos {
+class SignedSettingsHelper;
+}  // namespace chromeos
+
+namespace enterprise_management {
+class ChromeDeviceSettingsProto;
+class PolicyData;
+class PolicyFetchResponse;
+}  // namespace enterprise_management
+
 namespace policy {
 
 class CloudPolicyDataStore;
 class EnterpriseInstallAttributes;
 class PolicyMap;
 
 // CloudPolicyCacheBase implementation that persists policy information
-// to ChromeOS' session manager (via DeviceSettingsService).
-class DevicePolicyCache : public CloudPolicyCacheBase,
-                          public chromeos::DeviceSettingsService::Observer {
+// to ChromeOS' session manager (via SignedSettingsHelper).
+class DevicePolicyCache : public CloudPolicyCacheBase {
  public:
   DevicePolicyCache(CloudPolicyDataStore* data_store,
                     EnterpriseInstallAttributes* install_attributes);
   virtual ~DevicePolicyCache();
 
   // CloudPolicyCacheBase implementation:
   virtual void Load() OVERRIDE;
   virtual bool SetPolicy(
       const enterprise_management::PolicyFetchResponse& policy) OVERRIDE;
   virtual void SetUnmanaged() OVERRIDE;
   virtual void SetFetchingDone() OVERRIDE;
 
-  // DeviceSettingsService::Observer implementation:
-  virtual void OwnershipStatusChanged() OVERRIDE;
-  virtual void DeviceSettingsUpdated() OVERRIDE;
+  void OnRetrievePolicyCompleted(
+      chromeos::SignedSettings::ReturnCode code,
+      const enterprise_management::PolicyFetchResponse& policy);
 
  private:
   friend class DevicePolicyCacheTest;
   friend class DevicePolicyCacheTestHelper;
 
-  // Alternate c'tor allowing tests to mock out the DeviceSettingsService
+  // Alternate c'tor allowing tests to mock out the SignedSettingsHelper
   // singleton.
   DevicePolicyCache(
       CloudPolicyDataStore* data_store,
       EnterpriseInstallAttributes* install_attributes,
-      chromeos::DeviceSettingsService* device_settings_service);
+      chromeos::SignedSettingsHelper* signed_settings_helper);
 
   // CloudPolicyCacheBase implementation:
   virtual bool DecodePolicyData(
       const enterprise_management::PolicyData& policy_data,
       PolicyMap* policies) OVERRIDE;
 
-  // Handles completion of policy store operations.
-  void PolicyStoreOpCompleted();
+  void PolicyStoreOpCompleted(chromeos::SignedSettings::ReturnCode code);
 
   // Checks with immutable attributes whether this is an enterprise device and
   // read the registration user if this is the case.
   void CheckImmutableAttributes();
 
   // Tries to install the initial device policy retrieved from signed settings.
   // Fills in |device_token| if it could be extracted from the loaded protobuf.
   void InstallInitialPolicy(
-      chromeos::DeviceSettingsService::Status status,
-      const enterprise_management::PolicyData* policy_data,
+      chromeos::SignedSettings::ReturnCode code,
+      const enterprise_management::PolicyFetchResponse& policy,
       std::string* device_token);
 
   // Ensures that CrosSettings has established trust on the reporting prefs and
   // publishes the |device_token| loaded from the cache. It's important that we
   // have fully-initialized device settings s.t. device status uploads get the
   // correct reporting policy flags.
   void SetTokenAndFlagReady(const std::string& device_token);
 
   // Checks whether a policy fetch is pending and sends out a notification if
   // that is the case.
@@ skipping 21 matching lines @@
   static void DecodeAutoUpdatePolicies(
       const enterprise_management::ChromeDeviceSettingsProto& policy,
       PolicyMap* policies);
   static void DecodeGenericPolicies(
       const enterprise_management::ChromeDeviceSettingsProto& policy,
       PolicyMap* policies);
 
   CloudPolicyDataStore* data_store_;
   EnterpriseInstallAttributes* install_attributes_;
 
-  chromeos::DeviceSettingsService* device_settings_service_;
+  chromeos::SignedSettingsHelper* signed_settings_helper_;
 
   base::WeakPtrFactory<DevicePolicyCache> weak_ptr_factory_;
 
   bool policy_fetch_pending_;
 
   DISALLOW_COPY_AND_ASSIGN(DevicePolicyCache);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_DEVICE_POLICY_CACHE_H_