Change AuthenticatingURLLoader to be a URLLoaderInterceptor

services/authenticating_url_loader/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/module_args/mojo.gni")
 import("//mojo/public/mojo_application.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 
 source_set("authenticating_url_loader") {
   sources = [
     "authenticating_url_loader_app.cc",
     "authenticating_url_loader_app.h",
     "authenticating_url_loader_factory_impl.cc",
     "authenticating_url_loader_factory_impl.h",
-    "authenticating_url_loader_impl.cc",
-    "authenticating_url_loader_impl.h",
+    "authenticating_url_loader_interceptor.cc",
+    "authenticating_url_loader_interceptor.h",
+    "authenticating_url_loader_interceptor_factory.cc",
+    "authenticating_url_loader_interceptor_factory.h",
   ]
 
   deps = [
     "//base",
     "//mojo/common",
     "//mojo/environment:chromium",
     "//mojo/public/cpp/application",
     "//mojo/public/cpp/bindings",
     "//mojo/services/authenticating_url_loader/public/interfaces",
     "//mojo/services/authentication/public/interfaces",
     "//mojo/services/network/public/interfaces",
     "//url",
   ]
 }