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

ui/display/util/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/ui.gni")
+
+component("util") {
+  output_name = "display_util"
+  sources = [
+    "display_util.cc",
+    "display_util.h",
+    "display_util_export.h",
+    "edid_parser.cc",
+    "edid_parser.h",
+  ]
+
+  defines = [ "DISPLAY_UTIL_IMPLEMENTATION" ]
+
+  deps = [
+    "//base",
+    "//ui/gfx/geometry",
+  ]
+
+  if (use_x11) {
+    sources += [
+      "x11/edid_parser_x11.cc",
+      "x11/edid_parser_x11.h",
+    ]
+    configs += [ "//build/config/linux:xrandr" ]
+    deps += [ "//ui/gfx/x" ]
+  }
+  if (is_chromeos) {
+    deps += [ "//ui/display/types" ]
+  }
+}