WaitOnThread      800 chrome/browser/extensions/activity_log/counting_policy_unittest.cc   WaitOnThread(BrowserThread::DB);
WaitOnThread      813 chrome/browser/extensions/activity_log/counting_policy_unittest.cc   WaitOnThread(BrowserThread::DB);
WaitOnThread      911 chrome/browser/extensions/activity_log/counting_policy_unittest.cc   WaitOnThread(BrowserThread::DB);
WaitOnThread      930 chrome/browser/extensions/activity_log/counting_policy_unittest.cc   WaitOnThread(BrowserThread::DB);