Remove the unused throttling_url_loader_test_util.h/cc

As the ad delay throttle has been removed, this util used for its unit
test should be removed accordingly.

Bug: 829042
Change-Id: Iddfaf10da02082eb0d2dad6ccf64577c2e0ce377
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1867891Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Minggang Wang <minggang.wang@intel.com>
Cr-Commit-Position: refs/heads/master@{#707707}

content/public/test/throttling_url_loader_test_util.cc

-// Copyright 2018 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/public/test/throttling_url_loader_test_util.h"
-
-#include <utility>
-
-#include "content/common/throttling_url_loader.h"
-
-namespace content {
-
-std::unique_ptr<network::mojom::URLLoaderClient> CreateThrottlingLoaderAndStart(
-    scoped_refptr<network::SharedURLLoaderFactory> factory,
-    std::vector<std::unique_ptr<blink::URLLoaderThrottle>> throttles,
-    int32_t routing_id,
-    int32_t request_id,
-    uint32_t options,
-    network::ResourceRequest* url_request,
-    network::mojom::URLLoaderClient* client,
-    const net::NetworkTrafficAnnotationTag& traffic_annotation,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  return ThrottlingURLLoader::CreateLoaderAndStart(
-      std::move(factory), std::move(throttles), routing_id, request_id, options,
-      url_request, client, traffic_annotation, std::move(task_runner));
-}
-
-}  // namespace content

content/public/test/throttling_url_loader_test_util.h

-// Copyright 2018 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.
-
-#ifndef CONTENT_PUBLIC_TEST_THROTTLING_URL_LOADER_TEST_UTIL_H_
-#define CONTENT_PUBLIC_TEST_THROTTLING_URL_LOADER_TEST_UTIL_H_
-
-#include <memory>
-#include <vector>
-
-#include "base/memory/scoped_refptr.h"
-#include "base/single_thread_task_runner.h"
-#include "services/network/public/cpp/shared_url_loader_factory.h"
-#include "third_party/blink/public/common/loader/url_loader_throttle.h"
-
-namespace content {
-
-// Allows tests outside of content to interface with a ThrottlingURLLoader.
-std::unique_ptr<network::mojom::URLLoaderClient> CreateThrottlingLoaderAndStart(
-    scoped_refptr<network::SharedURLLoaderFactory> factory,
-    std::vector<std::unique_ptr<blink::URLLoaderThrottle>> throttles,
-    int32_t routing_id,
-    int32_t request_id,
-    uint32_t options,
-    network::ResourceRequest* url_request,
-    network::mojom::URLLoaderClient* client,
-    const net::NetworkTrafficAnnotationTag& traffic_annotation,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner);
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_TEST_THROTTLING_URL_LOADER_TEST_UTIL_H_

content/test/BUILD.gn

@@ -228,8 +228,6 @@ jumbo_static_library("test_support") {
     "../public/test/text_input_test_utils.cc",
     "../public/test/text_input_test_utils.h",
     "../public/test/text_input_test_utils_mac.mm",
-    "../public/test/throttling_url_loader_test_util.cc",
-    "../public/test/throttling_url_loader_test_util.h",
     "../public/test/unittest_test_suite.cc",
     "../public/test/unittest_test_suite.h",
     "../public/test/url_loader_interceptor.cc",