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// Copyright 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_SYNC_TEST_INTEGRATION_MIGRATION_WAITER_H_
#define CHROME_BROWSER_SYNC_TEST_INTEGRATION_MIGRATION_WAITER_H_
#include "base/macros.h"
#include "chrome/browser/sync/test/integration/status_change_checker.h"
#include "sync/internal_api/public/base/model_type.h"
class MigrationWatcher;
// Helper class that checks if the sync backend has successfully completed
// migration for a set of data types.
//
// Collaborates with the MigrationWatcher, defined above.
class MigrationWaiter : public StatusChangeChecker {
public:
// Initialize a waiter that will wait until |watcher|'s migrated types
// match the provided |exptected_types|.
MigrationWaiter(syncer::ModelTypeSet expected_types,
MigrationWatcher* watcher);
~MigrationWaiter() override;
// Implementation of StatusChangeChecker.
bool IsExitConditionSatisfied() override;
std::string GetDebugMessage() const override;
// Function to trigger the waiting.
void Wait();
// Callback invoked by our associated waiter when migration state changes.
void OnMigrationStateChange();
private:
// The MigrationWatcher we're observering.
MigrationWatcher* const watcher_;
// The set of data types that are expected to eventually undergo migration.
const syncer::ModelTypeSet expected_types_;
DISALLOW_COPY_AND_ASSIGN(MigrationWaiter);
};
#endif // CHROME_BROWSER_SYNC_TEST_INTEGRATION_MIGRATION_WAITER_H_
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