native_viewport support for ozone

ui/ozone/demo/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.
 
 group("demo") {
   deps = [
     ":ozone_demo",
   ]
 }
 
 executable("ozone_demo") {
   sources = [
     "gl_renderer.cc",
     "gl_renderer.h",
     "ozone_demo.cc",
     "renderer.h",
     "renderer_base.cc",
     "renderer_base.h",
     "software_renderer.cc",
     "software_renderer.h",
     "surfaceless_gl_renderer.cc",
     "surfaceless_gl_renderer.h",
   ]
 
   deps = [
     "//base",
     "//skia",
+    "//mojo/public/c/system:for_shared_library",
     "//ui/events",
     "//ui/events:dom_keycode_converter",
     "//ui/events/ozone:events_ozone_layout",
     "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/ozone",
     "//ui/ozone/gpu",
     "//ui/ozone:ozone_base",
     "//ui/display/types",
     "//ui/platform_window",
   ]
 }