Refactoring DownloadManager::DownloadURL to add proper annotation.

content/browser/download/download_request_core_unittest.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 <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "content/browser/download/download_item_impl.h"
 #include "content/browser/download/download_request_core.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "net/http/http_request_headers.h"
+#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 namespace {
 
 const char kTestLastModifiedTime[] = "Tue, 15 Nov 1994 12:45:26 GMT";
 
 }  // namespace
@@ skipping 15 matching lines @@
     EXPECT_EQ(expected_header_value, header_value);
   }
 
   bool HasRequestHeader(const std::string& name) {
     DCHECK(url_request_.get());
     return url_request_->extra_request_headers().HasHeader(name);
   }
 
   void CreateRequestOnIOThread(DownloadUrlParameters* params) {
     url_request_ = DownloadRequestCore::CreateRequestOnIOThread(
-        DownloadItem::kInvalidId, params);
+        DownloadItem::kInvalidId, params, TRAFFIC_ANNOTATION_FOR_TESTS);
     DCHECK(url_request_.get());
   }
 
   void SetUp() override {
     request_context_getter_ = new net::TestURLRequestContextGetter(
         content::BrowserThread::GetTaskRunnerForThread(
             content::BrowserThread::UI));
   }
 
   void TearDown() override {
@@ skipping 109 matching lines @@
   CreateRequestOnIOThread(params.get());
   CheckRequestHeaders(net::HttpRequestHeaders::kRange, "bytes=50-");
   CheckRequestHeaders(net::HttpRequestHeaders::kIfUnmodifiedSince,
                       kTestLastModifiedTime);
   EXPECT_FALSE(HasRequestHeader(net::HttpRequestHeaders::kIfRange));
   EXPECT_FALSE(HasRequestHeader(net::HttpRequestHeaders::kIfMatch));
   url_request_.reset();
 }
 
 }  // namespace content