Precache policy-for-extensions for device-local accounts.

chrome/browser/chromeos/policy/device_local_account_extension_tracker.h

+// Copyright (c) 2014 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_EXTENSION_TRACKER_H_
+#define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_EXTENSION_TRACKER_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "components/policy/core/common/cloud/cloud_policy_store.h"
+
+namespace policy {
+
+struct DeviceLocalAccount;
+class SchemaRegistry;
+
+// Helper class that keeps all the extensions that a device-local account uses
+// registered in a SchemaRegistry.
+class DeviceLocalAccountExtensionTracker : public CloudPolicyStore::Observer {
+ public:
+  DeviceLocalAccountExtensionTracker(
+      const DeviceLocalAccount& account,
+      CloudPolicyStore* store,
+      SchemaRegistry* schema_registry);
+
+  virtual ~DeviceLocalAccountExtensionTracker();
+
+  // CloudPolicyStore::Observer:
+  virtual void OnStoreLoaded(CloudPolicyStore* store) OVERRIDE;
+  virtual void OnStoreError(CloudPolicyStore* store) OVERRIDE;
+
+ private:
+  void UpdateFromStore();
+
+  CloudPolicyStore* store_;
+  SchemaRegistry* schema_registry_;
+
+  DISALLOW_COPY_AND_ASSIGN(DeviceLocalAccountExtensionTracker);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_LOCAL_ACCOUNT_EXTENSION_TRACKER_H_