Refactoring DownloadManager::DownloadURL to add proper annotation.

content/browser/background_fetch/background_fetch_context.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/background_fetch/background_fetch_context.h"
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/background_fetch/background_fetch_data_manager.h"
 #include "content/browser/background_fetch/background_fetch_event_dispatcher.h"
 #include "content/browser/background_fetch/background_fetch_job_controller.h"
 #include "content/browser/background_fetch/background_fetch_registration_id.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/browser/storage_partition_impl.h"
 #include "content/public/browser/blob_handle.h"
 #include "content/public/browser/browser_context.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "url/origin.h"
 
 namespace content {
 
 namespace {
 
 // Records the |error| status issued by the DataManager after it was requested
 // to create and store a new Background Fetch registration.
 void RecordRegistrationCreatedError(blink::mojom::BackgroundFetchError error) {
@@ skipping 125 matching lines @@
       base::MakeUnique<BackgroundFetchJobController>(
           registration_id, options, data_manager_.get(), browser_context_,
           request_context_getter_,
           base::BindOnce(&BackgroundFetchContext::DidCompleteJob, this));
 
   // TODO(peter): We should actually be able to use Background Fetch in layout
   // tests. That requires a download manager and a request context.
   if (request_context_getter_) {
     // Start fetching the |initial_requests| immediately. At some point in the
     // future we may want a more elaborate scheduling mechanism here.
-    controller->Start(std::move(initial_requests));
+    controller->Start(std::move(initial_requests), NO_TRAFFIC_ANNOTATION_YET);
   }
 
   active_fetches_.insert(
       std::make_pair(registration_id, std::move(controller)));
 }
 
 void BackgroundFetchContext::DidCompleteJob(
     BackgroundFetchJobController* controller) {
   const BackgroundFetchRegistrationId& registration_id =
       controller->registration_id();
@@ skipping 56 matching lines @@
 
   // Delete all persistent information associated with the |registration_id|.
   data_manager_->DeleteRegistration(
       registration_id, base::BindOnce(&RecordRegistrationDeletedError));
 
   // Delete the local state associated with the |registration_id|.
   active_fetches_.erase(registration_id);
 }
 
 }  // namespace content