Add FakeDisplayDelegate for off device usage.

ui/ozone/platform/x11/ozone_platform_x11.cc

Index: ui/ozone/platform/x11/ozone_platform_x11.cc
diff --git a/ui/ozone/platform/x11/ozone_platform_x11.cc b/ui/ozone/platform/x11/ozone_platform_x11.cc
index cf53f7deba972a1e521a26032dc90d88bcd08076..96a3d5a79608b4bade243d7a188c367fed7e1820 100644
--- a/ui/ozone/platform/x11/ozone_platform_x11.cc
+++ b/ui/ozone/platform/x11/ozone_platform_x11.cc
@@ -12,9 +12,9 @@
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "ui/display/fake_display_delegate.h"
 #include "ui/events/platform/x11/x11_event_source_libevent.h"
 #include "ui/ozone/common/stub_overlay_manager.h"
-#include "ui/ozone/platform/x11/native_display_delegate_ozone_x11.h"
 #include "ui/ozone/platform/x11/x11_cursor_factory_ozone.h"
 #include "ui/ozone/platform/x11/x11_surface_factory.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
@@ -86,7 +86,7 @@ class OzonePlatformX11 : public OzonePlatform {
 
   std::unique_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()
       override {
-    return base::MakeUnique<NativeDisplayDelegateOzoneX11>();
+    return base::MakeUnique<display::FakeDisplayDelegate>();
   }
 
   void InitializeUI() override {