Add ui/display, message_center, webview to GN build.

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")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
@@ skipping 42 matching lines @@
     "//third_party/cacheinvalidation",
     "//third_party/icu",
     "//third_party/libusb",
     "//third_party/libxml",
     "//third_party/zlib",
     "//ui/accessibility",
     "//ui/base",
     "//ui/events",
     "//ui/gfx",
     "//ui/gfx/geometry",
+    "//ui/message_center",
     "//ui/native_theme",
     "//ui/resources",
     "//ui/snapshot",
     "//ui/strings",
     #'chrome_browser_ui_views.gyp:browser_ui_views',  TODO(GYP)
     #'../components/components.gyp:auto_login_parser',  TODO(GYP)
     #'../components/components.gyp:invalidation',  TODO(GYP)
     #'../components/components.gyp:omaha_query_params',  TODO(GYP)
     #'../components/components.gyp:onc_component',  TODO(GYP)
     #'../components/components.gyp:password_manager_core_browser',  TODO(GYP)
-    #'../ui/message_center/message_center.gyp:message_center',  TODO(GYP)
   ]
 
   forward_dependent_configs_from = [
     "//components/dom_distiller/core",
     "//sync",
   ]
 
   if (!is_ios) {
     sources += rebase_path(gypi_values.chrome_browser_ui_non_ios_sources,
                            ".", "//chrome")
@@ skipping 328 matching lines @@
   }
   if (enable_service_discovery) {
     sources += rebase_path(
         gypi_values.chrome_browser_ui_service_discovery_sources,
         ".", "//chrome")
   }
   if (enable_spellcheck) {
     deps += [ "//third_party/hunspell" ]
   }
 }