Automated IWYU fix for TaskRunner includes.

content/browser/net/quota_policy_cookie_store_unittest.cc

 // 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.
 
 #include "content/browser/net/quota_policy_cookie_store.h"
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
+#include "base/sequenced_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/sequenced_worker_pool_owner.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/time/time.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "net/cookies/cookie_util.h"
 #include "net/ssl/ssl_client_cert_type.h"
 #include "net/test/cert_test_util.h"
 #include "net/test/test_data_directory.h"
 #include "sql/statement.h"
@@ skipping 259 matching lines @@
   // Reload and test for persistence.
   cookies.clear();
   CreateAndLoad(storage_policy.get(), &cookies);
   EXPECT_EQ(0U, cookies.size());
 
   cookies.clear();
 }
 
 }  // namespace
 }  // namespace content