Implement a basic UI flow for cryptohome encryption migration.

chromeos/dbus/fake_cryptohome_client.h

 // Copyright 2013 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 CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/timer/timer.h"
 #include "chromeos/dbus/cryptohome_client.h"
 
 namespace chromeos {
 
 class CHROMEOS_EXPORT FakeCryptohomeClient : public CryptohomeClient {
  public:
   FakeCryptohomeClient();
   ~FakeCryptohomeClient() override;
 
   void Init(dbus::Bus* bus) override;
@@ skipping 207 matching lines @@
   void ReturnAsyncMethodData(const AsyncMethodCallback& callback,
                              const std::string& data);
 
   // This method is used to implement ReturnAsyncMethodResult without data.
   void ReturnAsyncMethodResultInternal(const AsyncMethodCallback& callback);
 
   // This method is used to implement ReturnAsyncMethodResult with data.
   void ReturnAsyncMethodDataInternal(const AsyncMethodCallback& callback,
                                      const std::string& data);
 
+  // This method is used to implement MigrateToDircrypto with simulated progress
+  // updates.
+  void OnDircryptoMigrationProgressUpdated();
+
   bool service_is_available_;
   int async_call_id_;
   AsyncCallStatusHandler async_call_status_handler_;
   AsyncCallStatusWithDataHandler async_call_status_data_handler_;
   bool unmount_result_;
   std::vector<uint8_t> system_salt_;
 
   std::vector<WaitForServiceToBeAvailableCallback>
       pending_wait_for_service_to_be_available_callbacks_;
 
   // A stub store for InstallAttributes, mapping an attribute name to the
   // associated data blob. Used to implement InstallAttributesSet and -Get.
   std::map<std::string, std::vector<uint8_t>> install_attrs_;
   bool locked_;
+
+  DircryptoMigrationProgessHandler dircrypto_migration_progress_handler_;
+  base::RepeatingTimer dircrypto_migration_progress_timer_;
+  uint64_t dircrypto_migration_progress_;
+
   base::WeakPtrFactory<FakeCryptohomeClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeCryptohomeClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_CRYPTOHOME_CLIENT_H_