Split ui/display types into separate module and have Ozone depend on it

ui/display/chromeos/display_mode.h

-// 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.
-
-#ifndef UI_DISPLAY_CHROMEOS_DISPLAY_MODE_H_
-#define UI_DISPLAY_CHROMEOS_DISPLAY_MODE_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "ui/display/display_export.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace ui {
-
-// This class represents the basic information for a native mode. Platforms will
-// extend this class to add platform specific information about the mode.
-class DISPLAY_EXPORT DisplayMode {
- public:
-  DisplayMode(const gfx::Size& size, bool interlaced, float refresh_rate);
-  virtual ~DisplayMode();
-
-  const gfx::Size& size() const { return size_; }
-  bool is_interlaced() const { return is_interlaced_; }
-  float refresh_rate() const { return refresh_rate_; }
-
-  virtual std::string ToString() const;
-
- private:
-  gfx::Size size_;
-  bool is_interlaced_;
-  float refresh_rate_;
-
-  DISALLOW_COPY_AND_ASSIGN(DisplayMode);
-};
-
-}  // namespace ui
-
-#endif  // UI_DISPLAY_CHROMEOS_DISPLAY_MODE_H_