It is time.

mojo/aura/screen_mojo.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 MOJO_AURA_SCREEN_MOJO_H_
-#define MOJO_AURA_SCREEN_MOJO_H_
-
-#include "base/macros.h"
-#include "ui/gfx/display.h"
-#include "ui/gfx/screen.h"
-
-namespace gfx {
-class Rect;
-class Transform;
-}
-
-namespace mojo {
-
-// A minimal implementation of gfx::Screen for mojo.
-class ScreenMojo : public gfx::Screen {
- public:
-  static ScreenMojo* Create();
-  ~ScreenMojo() override;
-
- protected:
-  // gfx::Screen overrides:
-  bool IsDIPEnabled() override;
-  gfx::Point GetCursorScreenPoint() override;
-  gfx::NativeWindow GetWindowUnderCursor() override;
-  gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
-  int GetNumDisplays() const override;
-  std::vector<gfx::Display> GetAllDisplays() const override;
-  gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
-  gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override;
-  gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
-  gfx::Display GetPrimaryDisplay() const override;
-  void AddObserver(gfx::DisplayObserver* observer) override;
-  void RemoveObserver(gfx::DisplayObserver* observer) override;
-
- private:
-  explicit ScreenMojo(const gfx::Rect& screen_bounds);
-
-  gfx::Display display_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScreenMojo);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_AURA_SCREEN_MOJO_H_