Parallel download browser test.

content/browser/download/download_job_factory.cc

 // Copyright 2017 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/download/download_job_factory.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/download/download_item_impl.h"
@@ skipping 59 matching lines @@
   if (!satisfy_connection_type) {
     RecordParallelDownloadCreationEvent(
         ParallelDownloadCreationEvent::FALLBACK_REASON_CONNECTION_TYPE);
   }
 
   return should_use_parallel_download;
 }
 
 }  // namespace
 
+// static
 std::unique_ptr<DownloadJob> DownloadJobFactory::CreateJob(
     DownloadItemImpl* download_item,
     std::unique_ptr<DownloadRequestHandleInterface> req_handle,
     const DownloadCreateInfo& create_info) {
   // Build parallel download job.
   if (ShouldUseParallelDownload(create_info)) {
     return base::MakeUnique<ParallelDownloadJob>(download_item,
                                                  std::move(req_handle),
                                                  create_info);
   }
 
   // An ordinary download job.
   return base::MakeUnique<DownloadJobImpl>(download_item,
                                            std::move(req_handle));
 }
 
 }  // namespace