Refactoring DownloadManager::DownloadURL to add proper annotation.

chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.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 "chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.h"
 
 #include <vector>
 
 #include "base/android/jni_string.h"
 #include "base/bind.h"
@@ skipping 16 matching lines @@
 #include "components/offline_pages/core/downloads/download_ui_item.h"
 #include "components/offline_pages/core/offline_page_feature.h"
 #include "components/offline_pages/core/offline_page_model.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/OfflinePageDownloadBridge_jni.h"
 #include "net/base/filename_util.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "url/gurl.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ConvertUTF16ToJavaString;
 using base::android::JavaParamRef;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
 
@@ skipping 313 matching lines @@
         web_contents->GetController().GetLastCommittedEntry();
     // |entry| should not be null since otherwise an empty URL is returned from
     // calling GetLastCommittedURL and we should bail out earlier.
     DCHECK(entry);
     content::Referrer referrer =
         content::Referrer::SanitizeForRequest(url, entry->GetReferrer());
     dl_params->set_referrer(referrer);
 
     dl_params->set_prefer_cache(true);
     dl_params->set_prompt(false);
-    dlm->DownloadUrl(std::move(dl_params));
+    dlm->DownloadUrl(std::move(dl_params), NO_TRAFFIC_ANNOTATION_YET);
     return;
   }
 
   ScopedJavaGlobalRef<jobject> j_tab_ref(env, j_tab);
 
   OfflinePageUtils::CheckDuplicateDownloads(
       tab->GetProfile()->GetOriginalProfile(), url,
       base::Bind(&DuplicateCheckDone, url, original_url, j_tab_ref));
 }
 
@@ skipping 114 matching lines @@
     DownloadUIAdapter::AttachToOfflinePageModel(base::WrapUnique(adapter),
                                                 offline_page_model);
   }
 
   return reinterpret_cast<jlong>(
       new OfflinePageDownloadBridge(env, obj, adapter, browser_context));
 }
 
 }  // namespace android
 }  // namespace offline_pages