Move DIP translation from ui/aura to ui/compositor

ui/aura/dip_util.cc

-// 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.
-
-#include "ui/aura/dip_util.h"
-
-#include "ui/aura/env.h"
-#include "ui/aura/window.h"
-#include "ui/gfx/point.h"
-#include "ui/gfx/size.h"
-#include "ui/gfx/rect.h"
-
-#if defined(ENABLE_DIP)
-#include "ui/aura/monitor_manager.h"
-#include "ui/gfx/monitor.h"
-#endif
-
-namespace aura {
-#if defined(ENABLE_DIP)
-float GetMonitorScaleFactor(const Window* window) {
-  gfx::Monitor monitor = aura::Env::GetInstance()->monitor_manager()->
-      GetMonitorNearestWindow(window);
-  return monitor.device_scale_factor();
-}  // namespace
-#endif
-
-gfx::Point ConvertPointToDIP(const Window* window,
-                             const gfx::Point& point_in_pixel) {
-#if defined(ENABLE_DIP)
-  return point_in_pixel.Scale(1.0f / GetMonitorScaleFactor(window));
-#else
-  return point_in_pixel;
-#endif
-}
-
-gfx::Size ConvertSizeToDIP(const Window* window,
-                           const gfx::Size& size_in_pixel) {
-#if defined(ENABLE_DIP)
-  return size_in_pixel.Scale(1.0f / GetMonitorScaleFactor(window));
-#else
-  return size_in_pixel;
-#endif
-}
-
-gfx::Rect ConvertRectToDIP(const Window* window,
-                           const gfx::Rect& rect_in_pixel) {
-#if defined(ENABLE_DIP)
-  float scale = 1.0f / GetMonitorScaleFactor(window);
-  return gfx::Rect(rect_in_pixel.origin().Scale(scale),
-                   rect_in_pixel.size().Scale(scale));
-#else
-  return rect_in_pixel;
-#endif
-}
-
-gfx::Point ConvertPointToPixel(const Window* window,
-                               const gfx::Point& point_in_dip) {
-#if defined(ENABLE_DIP)
-  return point_in_dip.Scale(GetMonitorScaleFactor(window));
-#else
-  return point_in_dip;
-#endif
-}
-
-gfx::Size ConvertSizeToPixel(const Window* window,
-                             const gfx::Size& size_in_dip) {
-#if defined(ENABLE_DIP)
-  return size_in_dip.Scale(GetMonitorScaleFactor(window));
-#else
-  return size_in_dip;
-#endif
-}
-
-gfx::Rect ConvertRectToPixel(const Window* window,
-                             const gfx::Rect& rect_in_dip) {
-#if defined(ENABLE_DIP)
-  float scale = GetMonitorScaleFactor(window);
-  return gfx::Rect(rect_in_dip.origin().Scale(scale),
-                   rect_in_dip.size().Scale(scale));
-#else
-  return rect_in_dip;
-#endif
-}
-}  // namespace aura