[ios Mojo] Supporting code for define WebUI function.

ios/web/ios_web.gyp

Index: ios/web/ios_web.gyp
diff --git a/ios/web/ios_web.gyp b/ios/web/ios_web.gyp
index f83573d5324f70c43055cd1c0b8d60cf9289126b..40093dde62fe957e0b536364417ca8f7b4ac9142 100644
--- a/ios/web/ios_web.gyp
+++ b/ios/web/ios_web.gyp
@@ -362,18 +362,22 @@
       'variables': {
         'closure_entry_point': '__crWeb.webUIBundle',
         'js_bundle_files': [
-          'webui/resources/web_ui_base.js',        
+          '../third_party/requirejs/require.js',
+          'webui/resources/web_ui_base.js',
           'webui/resources/web_ui_bind.js',
           'webui/resources/web_ui_bundle.js',
           'webui/resources/web_ui_favicons.js',
+          'webui/resources/web_ui_module_load_notifier.js',
           'webui/resources/web_ui_send.js',
         ],
       },
       'sources': [
-          'webui/resources/web_ui_base.js',        
+          '../third_party/requirejs/require.js',
+          'webui/resources/web_ui_base.js',
           'webui/resources/web_ui_bind.js',
           'webui/resources/web_ui_bundle.js',
           'webui/resources/web_ui_favicons.js',
+          'webui/resources/web_ui_module_load_notifier.js',
           'webui/resources/web_ui_send.js',
       ],
       '!sources': [
@@ -381,9 +385,11 @@
         # copied with the rest of resources, as they just Closure dependencies
         # for web_ui_bundle.js. Dependencies were added as sources, so they get
         # indexed by Xcode.
+        '../third_party/requirejs/require.js',
         'webui/resources/web_ui_base.js',
         'webui/resources/web_ui_bind.js',
         'webui/resources/web_ui_favicons.js',
+        'webui/resources/web_ui_module_load_notifier.js',
         'webui/resources/web_ui_send.js',
       ],
       'link_settings': {
@@ -471,6 +477,8 @@
         'public/test/test_web_view_content_view.mm',
         'test/crw_fake_web_controller_observer.h',
         'test/crw_fake_web_controller_observer.mm',
+        'test/test_url_constants.cc',
+        'test/test_url_constants.h',
         'test/test_web_thread.cc',
         'test/test_web_thread_bundle.cc',
         'test/web_int_test.h',