Move Screen, its impls, DisplayObserver and DisplayChangeNotifier to ui/display

chrome/browser/ui/window_sizer/window_sizer.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 CHROME_BROWSER_UI_WINDOW_SIZER_WINDOW_SIZER_H_
 #define CHROME_BROWSER_UI_WINDOW_SIZER_WINDOW_SIZER_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/geometry/rect.h"
 
 class Browser;
 
 namespace gfx {
 class Display;
-class Screen;
 }
 
 namespace display {
 using Display = gfx::Display;
-using Screen = gfx::Screen;
+class Screen;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // WindowSizer
 //
 //  A class that determines the best new size and position for a window to be
 //  shown at based several factors, including the position and size of the last
 //  window of the same type, the last saved bounds of the window from the
 //  previous session, and default system metrics if neither of the above two
 //  conditions exist. The system has built-in providers for monitor metrics
@@ skipping 156 matching lines @@
   std::unique_ptr<TargetDisplayProvider> target_display_provider_;
   display::Screen* screen_;  // not owned.
 
   // Note that this browser handle might be NULL.
   const Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSizer);
 };
 
 #endif  // CHROME_BROWSER_UI_WINDOW_SIZER_WINDOW_SIZER_H_