Automated IWYU fix for TaskRunner includes.

content/browser/dom_storage/local_storage_context_mojo.cc

 // Copyright 2016 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/dom_storage/local_storage_context_mojo.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/leveldb/public/cpp/util.h"
 #include "components/leveldb/public/interfaces/leveldb.mojom.h"
 #include "content/browser/dom_storage/dom_storage_area.h"
 #include "content/browser/dom_storage/dom_storage_database.h"
 #include "content/browser/dom_storage/dom_storage_task_runner.h"
 #include "content/browser/dom_storage/local_storage_database.pb.h"
 #include "content/browser/leveldb_wrapper_impl.h"
 #include "content/common/dom_storage/dom_storage_types.h"
 #include "content/public/browser/local_storage_usage_info.h"
@@ skipping 583 matching lines @@
   for (const auto& info : usage) {
     url::Origin origin_candidate(info.origin);
     if (!origin_candidate.IsSameOriginWith(origin) &&
         origin_candidate.IsSamePhysicalOriginWith(origin))
       DeleteStorage(origin_candidate);
   }
   DeleteStorage(origin);
 }
 
 }  // namespace content