Adds a --deterministic-fetch flag to headless_shell

headless/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("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 
 config("headless_implementation") {
@@ skipping 184 matching lines @@
               "public/headless_devtools_host.h",
               "public/headless_devtools_target.h",
               "public/headless_export.h",
               "public/headless_web_contents.h",
               "public/internal/message_dispatcher.h",
               "public/internal/value_conversions.h",
               "public/util/black_hole_protocol_handler.cc",
               "public/util/black_hole_protocol_handler.h",
               "public/util/deterministic_dispatcher.cc",
               "public/util/deterministic_dispatcher.h",
+              "public/util/deterministic_http_protocol_handler.cc",
+              "public/util/deterministic_http_protocol_handler.h",
               "public/util/error_reporter.cc",
               "public/util/error_reporter.h",
               "public/util/expedited_dispatcher.cc",
               "public/util/expedited_dispatcher.h",
               "public/util/generic_url_request_job.cc",
               "public/util/generic_url_request_job.h",
+              "public/util/http_url_fetcher.cc",
+              "public/util/http_url_fetcher.h",
               "public/util/in_memory_protocol_handler.cc",
               "public/util/in_memory_protocol_handler.h",
               "public/util/in_memory_request_job.cc",
               "public/util/in_memory_request_job.h",
               "public/util/managed_dispatch_url_request_job.cc",
               "public/util/managed_dispatch_url_request_job.h",
               "public/util/user_agent.cc",
               "public/util/user_agent.h",
               "public/util/url_fetcher.cc",
               "public/util/url_fetcher.h",
@@ skipping 142 matching lines @@
   sources = [
     "app/headless_shell.cc",
     "app/headless_shell_switches.cc",
     "app/headless_shell_switches.h",
   ]
 
   deps = [
     "//headless:headless_lib",
   ]
 }