Drop refs to net::EmbeddedTestServer / net::File{Path,URL} utils in mojo

mojo/shell/BUILD.gn

 # Copyright 2014 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("//build/config/ui.gni")
 
 executable("mojo_shell") {
   deps = [
     ":lib",
@@ skipping 37 matching lines @@
     "app_child_process_host.h",
     "child_process.cc",
     "child_process.h",
     "child_process_host.cc",
     "child_process_host.h",
     "context.cc",
     "context.h",
     "dynamic_application_loader.cc",
     "dynamic_application_loader.h",
     "dynamic_service_runner.h",
+    "external_application_listener.h",
     "external_application_listener_posix.cc",
     "external_application_listener_win.cc",
-    "external_application_listener.h",
+    "filename_util.cc",
+    "filename_util.h",
+    "in_process_dynamic_service_runner.cc",
+    "in_process_dynamic_service_runner.h",
     "incoming_connection_listener_posix.cc",
     "incoming_connection_listener_posix.h",
     "init.cc",
     "init.h",
-    "in_process_dynamic_service_runner.cc",
-    "in_process_dynamic_service_runner.h",
     "mojo_url_resolver.cc",
     "mojo_url_resolver.h",
     "out_of_process_dynamic_service_runner.cc",
     "out_of_process_dynamic_service_runner.h",
     "switches.cc",
     "switches.h",
     "task_runners.cc",
     "task_runners.h",
     "test_child_process.cc",
     "test_child_process.h",
@@ skipping 114 matching lines @@
     "//mojo/edk/system",
     "//mojo/environment:chromium",
   ]
 
   sources = [
     "incoming_connection_listener_unittest.cc",
     "external_application_listener_unittest.cc",
     "external_application_test_main.cc",
   ]
 }