Revert of Have Notifications appear over docked windows

ash/system/web_notification/ash_popup_alignment_delegate.h

 // Copyright 2014 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_SYSTEM_WEB_NOTIFICATION_ASH_POPUP_ALIGNMENT_DELEGATE_H_
 #define ASH_SYSTEM_WEB_NOTIFICATION_ASH_POPUP_ALIGNMENT_DELEGATE_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
 #include "ash/shelf/shelf_types.h"
@@ skipping 52 matching lines @@
 
   // Update |shelf_| and start watching when it's first set. This should not
   // be done in the constructor because the shelf might not be initialized at
   // that point.
   void UpdateShelf();
 
   // Utility function to get the display which should be care about.
   gfx::Display GetCurrentDisplay() const;
 
   // Compute the new work area.
-  void UpdateWorkArea();
+  void UpdateWorkArea(const gfx::Display& display,
+                      ShelfAutoHideState new_state);
 
   // Overridden from ShellObserver:
   void OnDisplayWorkAreaInsetsChanged() override;
 
   // Overridden from ShelfLayoutManagerObserver:
   void OnAutoHideStateChanged(ShelfAutoHideState new_state) override;
 
   // Overridden from gfx::DisplayObserver:
   void OnDisplayAdded(const gfx::Display& new_display) override;
   void OnDisplayRemoved(const gfx::Display& old_display) override;
   void OnDisplayMetricsChanged(const gfx::Display& display,
                                uint32_t metrics) override;
 
   gfx::Screen* screen_;
   gfx::Rect work_area_;
   aura::Window* root_window_;
   ShelfLayoutManager* shelf_;
   int system_tray_height_;
 
   DISALLOW_COPY_AND_ASSIGN(AshPopupAlignmentDelegate);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_WEB_NOTIFICATION_ASH_POPUP_ALIGNMENT_DELEGATE_H_