Remove IsDIPEnabled from Screen

ui/aura/test/test_screen.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_TEST_TEST_SCREEN_H_
 #define UI_AURA_TEST_TEST_SCREEN_H_
 
 #include "base/compiler_specific.h"
 #include "ui/aura/window_observer.h"
 #include "ui/gfx/display.h"
@@ skipping 31 matching lines @@
   gfx::Transform GetRotationTransform() const;
   gfx::Transform GetUIScaleTransform() const;
 
   // WindowObserver overrides:
   virtual void OnWindowBoundsChanged(Window* window,
                                      const gfx::Rect& old_bounds,
                                      const gfx::Rect& new_bounds) override;
   virtual void OnWindowDestroying(Window* window) override;
 
   // gfx::Screen overrides:
-  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 view) const override;
   virtual gfx::Display GetDisplayNearestPoint(
       const gfx::Point& point) const override;
@@ skipping 11 matching lines @@
   gfx::Display display_;
 
   float ui_scale_;
 
   DISALLOW_COPY_AND_ASSIGN(TestScreen);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_TEST_TEST_SCREEN_H_