Move DIP translation from ui/aura to ui/compositor

ui/aura/dip_util.h

-// Copyright (c) 2012 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_AURA_DIP_UTIL_H_
-#define UI_AURA_DIP_UTIL_H_
-#pragma once
-
-#include "ui/aura/aura_export.h"
-
-namespace gfx {
-class Point;
-class Size;
-class Rect;
-}  // namespace gfx
-
-namespace aura {
-class Window;
-
-#if defined(ENABLE_DIP)
-AURA_EXPORT float GetMonitorScaleFactor(const Window* window);
-#endif
-
-// Utility functions that convert point/size/rect between
-// DIP and pixel coordinates system.
-AURA_EXPORT gfx::Point ConvertPointToDIP(const Window* window,
-                                         const gfx::Point& point_in_pixel);
-AURA_EXPORT gfx::Size ConvertSizeToDIP(const Window* window,
-                                       const gfx::Size& size_in_pixel);
-AURA_EXPORT gfx::Rect ConvertRectToDIP(const Window* window,
-                                       const gfx::Rect& rect_in_pixel);
-AURA_EXPORT gfx::Point ConvertPointToPixel(const Window* window,
-                                           const gfx::Point& point_in_dip);
-AURA_EXPORT gfx::Size ConvertSizeToPixel(const Window* window,
-                                         const gfx::Size& size_in_dip);
-AURA_EXPORT gfx::Rect ConvertRectToPixel(const Window* window,
-                                         const gfx::Rect& rect_in_dip);
-
-}  // namespace aura
-
-#endif  // UI_AURA_DIP_UTIL_H_