mandoline: write this after lunch.

mandoline/ui/omnibox/BUILD.gn

 # Copyright 2015 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("//mojo/public/mojo_application.gni")
 
 mojo_native_application("omnibox") {
   sources = [
     "main.cc",
   ]
@@ skipping 15 matching lines @@
 
   deps = [
     "//base",
     "//components/mus/public/cpp",
     "//components/url_formatter",
     "//mandoline/ui/desktop_ui/public/interfaces",
     "//mojo/application/public/cpp:sources",
     "//mojo/common",
     "//mojo/converters/geometry",
     "//mojo/public/cpp/bindings",
+    "//mojo/services/tracing/public/cpp",
     "//skia",
     "//ui/gfx/geometry",
     "//ui/mojo/init",
     "//ui/views",
     "//ui/views/mus:for_mojo_application",
   ]
 }