Introduce WindowStateDelegate::ToggleFullscreen

ash/wm/workspace/workspace_layout_manager.cc

 // 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.
 
 #include "ash/wm/workspace/workspace_layout_manager.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_ash.h"
 #include "ash/shelf/shelf_layout_manager.h"
@@ skipping 331 matching lines @@
         SetChildBoundsDirect(window, new_bounds);
       else
         CrossFadeToBounds(window, new_bounds);
       break;
     }
 
     case ui::SHOW_STATE_FULLSCREEN: {
       MoveToDisplayForRestore(window_state);
       gfx::Rect new_bounds = ScreenAsh::GetDisplayBoundsInParent(
           window->parent()->parent());
-      if (window->GetProperty(kAnimateToFullscreenKey) &&
+      if (window_state->animate_to_fullscreen() &&
           last_show_state != ui::SHOW_STATE_MINIMIZED) {
         CrossFadeToBounds(window, new_bounds);
       } else {
         SetChildBoundsDirect(window, new_bounds);
       }
       break;
     }
 
     default:
       break;
@@ skipping 19 matching lines @@
         window_state->window(),
         ScreenAsh::GetDisplayBoundsInParent(
             window_state->window()->parent()->parent()));
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace ash