mash: Migrate ShelfLayoutManager ScreenUtil usage to ash common types.

ash/common/wm_shell.h

 // Copyright 2016 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 ASH_COMMON_WM_SHELL_H_
 #define ASH_COMMON_WM_SHELL_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "ash/common/media_delegate.h"
 #include "ash/common/metrics/user_metrics_action.h"
 #include "ash/common/wm/lock_state_observer.h"
 #include "base/observer_list.h"
 #include "ui/base/ui_base_types.h"
 
+namespace display {
+class Display;
+}
+
 namespace gfx {
 class Point;
 }
 
 namespace views {
 class PointerWatcher;
 }
 
 namespace ash {
 
@@ skipping 121 matching lines @@
   // Returns the root window for the specified display.
   virtual WmWindow* GetRootWindowForDisplayId(int64_t display_id) = 0;
 
   // Returns the root window that newly created windows should be added to.
   // Value can be temporarily overridden using ScopedRootWindowForNewWindows.
   // NOTE: this returns the root, newly created window should be added to the
   // appropriate container in the returned window.
   WmWindow* GetRootWindowForNewWindows();
 
   // Retuns the display info associated with |display_id|.
-  // TODO(msw): Remove this when DisplayManager has been moved. crbug.com/622480
+  // TODO(mash): Remove when DisplayManager has been moved. crbug.com/622480
   virtual const DisplayInfo& GetDisplayInfo(int64_t display_id) const = 0;
 
   // Matches that of DisplayManager::IsActiveDisplayId().
-  // TODO: Remove this when DisplayManager has been moved. crbug.com/622480
+  // TODO(mash): Remove when DisplayManager has been moved. crbug.com/622480
   virtual bool IsActiveDisplayId(int64_t display_id) const = 0;
 
+  // Returns true if the desktop is in unified mode.
+  // TODO(mash): Remove when DisplayManager has been moved. crbug.com/622480
+  virtual bool IsInUnifiedMode() const = 0;
+
+  // Returns the first display; this is the first display listed by hardware,
+  // which corresponds to internal displays on devices with integrated displays.
+  // TODO(mash): Remove when DisplayManager has been moved. crbug.com/622480
+  virtual display::Display GetFirstDisplay() const = 0;
+
   // Returns true if the first window shown on first run should be
   // unconditionally maximized, overriding the heuristic that normally chooses
   // the window size.
   virtual bool IsForceMaximizeOnFirstRun() = 0;
 
   // Returns true if a system-modal dialog window is currently open.
   bool IsSystemModalWindowOpen();
 
   // For testing only: set simulation that a modal window is open
   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
@@ skipping 190 matching lines @@
   bool simulate_modal_window_open_for_testing_ = false;
 
 #if defined(OS_CHROMEOS)
   std::unique_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 #endif
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_SHELL_H_