Split //ui/display and create //ui/display/manager.

ui/display/chromeos/x11/display_mode_x11.cc

-// 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.
-
-#include "base/memory/ptr_util.h"
-
-#include "ui/display/chromeos/x11/display_mode_x11.h"
-
-namespace ui {
-
-DisplayModeX11::DisplayModeX11(const gfx::Size& size,
-                               bool interlaced,
-                               float refresh_rate,
-                               RRMode mode_id)
-    : DisplayMode(size, interlaced, refresh_rate),
-      mode_id_(mode_id) {}
-
-DisplayModeX11::~DisplayModeX11() {}
-
-std::unique_ptr<DisplayMode> DisplayModeX11::Clone() const {
-  return base::WrapUnique(new DisplayModeX11(size(),
-                                             is_interlaced(),
-                                             refresh_rate(),
-                                             mode_id()));
-}
-
-}  // namespace ui