Have Notifications appear over docked windows

ash/shelf/shelf_layout_manager.h

 // Copyright 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 ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 #define ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 103 matching lines @@
   // Returns whether the shelf and its contents (shelf, status) are visible
   // on the screen.
   bool IsVisible() const;
 
   // Returns the ideal bounds of the shelf assuming it is visible.
   gfx::Rect GetIdealBounds();
 
   // Returns the docked area bounds.
   const gfx::Rect& dock_bounds() const { return dock_bounds_; }
 
+  // Returns the bounds within the root window not occupied by the shelf.
+  const gfx::Rect& non_shelf_bounds_in_root() const {
+    return non_shelf_bounds_in_root_;
+  }
+
   // Stops any animations and sets the bounds of the shelf and status
   // widgets.
   void LayoutShelf();
 
   // Returns shelf visibility state based on current value of auto hide
   // behavior setting.
   ShelfVisibilityState CalculateShelfVisibility();
 
   // Updates the visibility state.
   void UpdateVisibilityState();
@@ skipping 258 matching lines @@
 
   // Used to delay updating shelf background.
   UpdateShelfObserver* update_shelf_observer_;
 
   // The bounds of the keyboard.
   gfx::Rect keyboard_bounds_;
 
   // The bounds of the dock.
   gfx::Rect dock_bounds_;
 
+  // The bounds within the root window not occupied by the shelf.
+  gfx::Rect non_shelf_bounds_in_root_;
+
   // The show hide animation duration override or 0 for default.
   int duration_override_in_ms_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfLayoutManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELF_SHELF_LAYOUT_MANAGER_H_