Add a Javascript wrapper for InterfaceRegistry.

content/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("//build/config/features.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/console_app.gni")
 import("//build/config/win/manifest.gni")
 import("//media/media_options.gni")
@@ skipping 153 matching lines @@
     "common/shell_origin_trial_policy.cc",
     "common/shell_origin_trial_policy.h",
     "common/shell_switches.cc",
     "common/shell_switches.h",
     "common/shell_test_configuration.cc",
     "common/shell_test_configuration.h",
     "renderer/layout_test/blink_test_helpers.cc",
     "renderer/layout_test/blink_test_helpers.h",
     "renderer/layout_test/blink_test_runner.cc",
     "renderer/layout_test/blink_test_runner.h",
+    "renderer/layout_test/interface_registry_js_wrapper.cc",
+    "renderer/layout_test/interface_registry_js_wrapper.h",
     "renderer/layout_test/layout_test_content_renderer_client.cc",
     "renderer/layout_test/layout_test_content_renderer_client.h",
     "renderer/layout_test/layout_test_render_frame_observer.cc",
     "renderer/layout_test/layout_test_render_frame_observer.h",
     "renderer/layout_test/layout_test_render_thread_observer.cc",
     "renderer/layout_test/layout_test_render_thread_observer.h",
     "renderer/layout_test/leak_detector.cc",
     "renderer/layout_test/leak_detector.h",
     "renderer/layout_test/test_media_stream_renderer_factory.cc",
     "renderer/layout_test/test_media_stream_renderer_factory.h",
@@ skipping 47 matching lines @@
     "//content/test:content_test_mojo_bindings",
     "//content/test:layouttest_support",
     "//content/test:test_support",
     "//device/bluetooth",
     "//device/bluetooth:mocks",
     "//device/geolocation",
     "//gin",
     "//gpu",
     "//ipc",
     "//media",
+    "//mojo/edk/js",
     "//net",
     "//net:net_resources",
     "//sandbox",
     "//services/shell/public/cpp",
     "//skia",
     "//storage/browser",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/WebKit/public:blink",
     "//third_party/WebKit/public:image_resources",
@@ skipping 486 matching lines @@
       "{{bundle_resources_dir}}/{{source_file_part}}",
     ]
   }
 }
 
 mojom("mojo_bindings") {
   sources = [
     "common/layout_test/layout_test_bluetooth_fake_adapter_setter.mojom",
   ]
 }