Switch to standard integer types in chrome/browser/, part 1 of 4.

chrome/browser/android/history_report/historic_visits_migration_task.h

 // Copyright 2015 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_ANDROID_HISTORY_REPORT_HISTORIC_VISITS_MIGRATION_TASK_H_
 #define CHROME_BROWSER_ANDROID_HISTORY_REPORT_HISTORIC_VISITS_MIGRATION_TASK_H_
 
+#include "base/macros.h"
 #include "base/synchronization/waitable_event.h"
 #include "components/history/core/browser/history_db_task.h"
 
 namespace history_report {
 class UsageReportsBufferService;
 
 class HistoricVisitsMigrationTask : public history::HistoryDBTask {
  public:
   HistoricVisitsMigrationTask(base::WaitableEvent* event,
                               UsageReportsBufferService* report_buffer_service);
 
   bool RunOnDBThread(history::HistoryBackend* backend,
                              history::HistoryDatabase* db) override;
   void DoneRunOnMainThread() override {}
 
  private:
   ~HistoricVisitsMigrationTask() override {}
 
   base::WaitableEvent* wait_event_;
   UsageReportsBufferService* usage_reports_buffer_service_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoricVisitsMigrationTask);
 };
 
 }  // namespace history_report
 
 #endif  // CHROME_BROWSER_ANDROID_HISTORY_REPORT_HISTORIC_VISITS_MIGRATION_TASK_H_