Separate the logic of popup alignment and workarea handling as delegate.

ash/shelf/shelf_layout_manager.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 ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 #define ASH_SHELF_SHELF_LAYOUT_MANAGER_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 29 matching lines @@
 
 namespace ash {
 class PanelLayoutManagerTest;
 class ScreenAsh;
 class ShelfBezelEventFilter;
 class ShelfLayoutManagerObserver;
 class ShelfLayoutManagerTest;
 class ShelfWidget;
 class StatusAreaWidget;
 class WorkspaceController;
+FORWARD_DECLARE_TEST(PopupAlignmentDelegateTest, AutoHide);
 FORWARD_DECLARE_TEST(WebNotificationTrayTest, PopupAndFullscreen);
 
 // ShelfLayoutManager is the layout manager responsible for the shelf and
 // status widgets. The shelf is given the total available width and told the
 // width of the status area. This allows the shelf to draw the background and
 // layout to the status area.
 // To respond to bounds changes in the status area StatusAreaLayoutManager works
 // closely with ShelfLayoutManager.
 class ASH_EXPORT ShelfLayoutManager :
     public aura::LayoutManager,
@@ skipping 159 matching lines @@
   // Returns a ShelfLayoutManager on the display which has a shelf for
   // given |window|. See RootWindowController::ForShelf for more info.
   static ShelfLayoutManager* ForShelf(aura::Window* window);
 
  private:
   class AutoHideEventFilter;
   class UpdateShelfObserver;
   friend class ash::ScreenAsh;
   friend class PanelLayoutManagerTest;
   friend class ShelfLayoutManagerTest;
+  FRIEND_TEST_ALL_PREFIXES(ash::PopupAlignmentDelegateTest, AutoHide);
   FRIEND_TEST_ALL_PREFIXES(ash::WebNotificationTrayTest, PopupAndFullscreen);
 
   struct TargetBounds {
     TargetBounds();
     ~TargetBounds();
 
     float opacity;
     float status_opacity;
     gfx::Rect shelf_bounds_in_root;
     gfx::Rect shelf_bounds_in_shelf;
@@ skipping 159 matching lines @@
 
   // 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_