Adding client code for new desktop First Run Experience.

chrome/browser/ui/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 1905 matching lines @@
       "webui/signin/signin_supervised_user_import_handler.cc",
       "webui/signin/signin_supervised_user_import_handler.h",
       "webui/signin/sync_confirmation_handler.cc",
       "webui/signin/sync_confirmation_handler.h",
       "webui/signin/sync_confirmation_ui.cc",
       "webui/signin/sync_confirmation_ui.h",
       "webui/signin/user_manager_screen_handler.cc",
       "webui/signin/user_manager_screen_handler.h",
       "webui/signin/user_manager_ui.cc",
       "webui/signin/user_manager_ui.h",
+      "webui/welcome_ui.cc",
+      "webui/welcome_ui.h",
     ]
     if (is_mac && !mac_views_browser) {
       sources -= [
         # This is not explicitly excluded in GYP, but I think the static
         # library linking rules means it's never referenced when compiling in
         # non-Views mode on Mac. It appears not to link in that case.
         "views/frame/avatar_button_manager.cc",
         "views/frame/avatar_button_manager.h",
         "views/profiles/new_avatar_button.cc",
         "views/profiles/new_avatar_button.h",
@@ skipping 1423 matching lines @@
       "passwords/passwords_model_delegate_mock.cc",
       "passwords/passwords_model_delegate_mock.h",
     ]
     deps += [ "//chrome/test:test_support_ui" ]
   }
 
   if (enable_extensions) {
     deps += [ "//extensions/browser" ]
   }
 }