[ios] EarlGrey tests for HTTP Authentication.

ios/chrome/browser/web/BUILD.gn

 # 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.
 
 import("//ios/web/js_compile.gni")
 
 source_set("web") {
   configs += [ "//build/config/compiler:enable_arc" ]
   sources = [
     "dom_altering_lock.h",
@@ skipping 220 matching lines @@
 }
 
 source_set("eg_tests") {
   testonly = true
   sources = [
     "browsing_egtest.mm",
     "browsing_prevent_default_egtest.mm",
     "cache_egtest.mm",
     "child_window_open_by_dom_egtest.mm",
     "forms_egtest.mm",
+    "http_auth_egtest.mm",
     "js_print_egtest.mm",
     "navigation_egtest.mm",
     "progress_indicator_egtest.mm",
     "push_and_replace_state_navigation_egtest.mm",
     "stop_loading_egtest.mm",
     "visible_url_egtest.mm",
     "window_open_by_dom_egtest.mm",
   ]
   deps = [
     "//base",
@@ skipping 42 matching lines @@
 # Clean Skeleton targets.
 source_set("web_clean_skeleton") {
   sources = [
     "web_mediator+internal.h",
     "web_mediator.h",
     "web_mediator.mm",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }