Remove ui-enable-dip option

ui/compositor/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_COMPOSITOR_DIP_UTIL_H_
 #define UI_COMPOSITOR_DIP_UTIL_H_
 #pragma once
 
 #include "ui/compositor/compositor_export.h"
 #include "base/basictypes.h"
 
 namespace gfx {
 class Point;
 class Size;
 class Rect;
 }  // namespace gfx
 
 namespace ui {
-namespace test {
-
-// A scoped object allows you to temporarily enable DIP
-// in the unit tests.
-class COMPOSITOR_EXPORT ScopedDIPEnablerForTest {
- public:
-  ScopedDIPEnablerForTest();
-  ~ScopedDIPEnablerForTest();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ScopedDIPEnablerForTest);
-};
-
-}  // namespace test
-
 class Layer;
 
-// True if DIP is enabled.
-COMPOSITOR_EXPORT bool IsDIPEnabled();
-
 COMPOSITOR_EXPORT float GetDeviceScaleFactor(const Layer* layer);
 
 // Utility functions that convert point/size/rect between
 // DIP and pixel coordinates system.
 COMPOSITOR_EXPORT gfx::Point ConvertPointToDIP(
     const Layer* layer,
     const gfx::Point& point_in_pixel);
 COMPOSITOR_EXPORT gfx::Size ConvertSizeToDIP(
     const Layer* layer,
     const gfx::Size& size_in_pixel);
 COMPOSITOR_EXPORT gfx::Rect ConvertRectToDIP(
     const Layer* layer,
     const gfx::Rect& rect_in_pixel);
 COMPOSITOR_EXPORT gfx::Point ConvertPointToPixel(
     const Layer* layer,
     const gfx::Point& point_in_dip);
 COMPOSITOR_EXPORT gfx::Size ConvertSizeToPixel(
     const Layer* layer,
     const gfx::Size& size_in_dip);
 COMPOSITOR_EXPORT gfx::Rect ConvertRectToPixel(
     const Layer* layer,
     const gfx::Rect& rect_in_dip);
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_DIP_UTIL_H_