Remove IsDIPEnabled from Screen

ui/gfx/screen_win.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_GFX_SCREEN_WIN_H_
 #define UI_GFX_SCREEN_WIN_H_
 
 #include "base/compiler_specific.h"
 #include "ui/gfx/display_change_notifier.h"
 #include "ui/gfx/gfx_export.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/win/singleton_hwnd.h"
 
 namespace gfx {
 
 class GFX_EXPORT ScreenWin : public Screen,
                              public SingletonHwnd::Observer {
  public:
   ScreenWin();
   virtual ~ScreenWin();
 
  protected:
   // Overridden from gfx::Screen:
-  virtual bool IsDIPEnabled() override;
   virtual gfx::Point GetCursorScreenPoint() override;
   virtual gfx::NativeWindow GetWindowUnderCursor() override;
   virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
       override;
   virtual int GetNumDisplays() const override;
   virtual std::vector<gfx::Display> GetAllDisplays() const override;
   virtual gfx::Display GetDisplayNearestWindow(
       gfx::NativeView window) const override;
   virtual gfx::Display GetDisplayNearestPoint(
       const gfx::Point& point) const override;
@@ skipping 21 matching lines @@
 
   // Current list of displays.
   std::vector<gfx::Display> displays_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenWin);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_SCREEN_WIN_H_