#include "components/history/core/test/history_service_test_util.h"
#include "base/files/file_path.h"
#include "base/run_loop.h"
#include "components/history/core/browser/history_backend.h"
#include "components/history/core/browser/history_database.h"
#include "components/history/core/browser/history_database_params.h"
#include "components/history/core/browser/history_db_task.h"
#include "components/history/core/browser/history_service.h"
#include "components/history/core/browser/history_service_observer.h"
#include "components/history/core/browser/url_database.h"
#include "components/history/core/test/test_history_database.h"
namespace history {
std::unique_ptr<HistoryService> CreateHistoryService(
const base::FilePath& history_dir,
bool create_db) { … }
void BlockUntilHistoryProcessesPendingRequests(
HistoryService* history_service) { … }
}