Beginnings of Window Modality support.

ui/aura_shell/shell.h

 // Copyright (c) 2011 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 UI_AURA_SHELL_SHELL_H_
 #define UI_AURA_SHELL_SHELL_H_
 #pragma once
 
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/task.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/aura_shell/aura_shell_export.h"
 
 namespace aura {
+class EventFilter;
 class Window;
 }
 namespace gfx {
 class Rect;
 }
 
 namespace aura_shell {
 
 class Launcher;
 class ShellDelegate;
@@ skipping 15 matching lines @@
   static Shell* CreateInstance(ShellDelegate* delegate);
 
   // Should never be called before |CreateInstance()|.
   static Shell* GetInstance();
 
   static void DeleteInstanceForTesting();
 
   aura::Window* GetContainer(int container_id);
   const aura::Window* GetContainer(int container_id) const;
 
+  // Adds or removes |filter| from the DesktopEventFilter.
+  void AddDesktopEventFilter(aura::EventFilter* filter);
+  void RemoveDesktopEventFilter(aura::EventFilter* filter);
+
   // Toggles between overview mode and normal mode.
   void ToggleOverview();
 
   ShellDelegate* delegate() { return delegate_.get(); }
   Launcher* launcher() { return launcher_.get(); }
 
  private:
   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
 
   explicit Shell(ShellDelegate* delegate);
@@ skipping 16 matching lines @@
 
   scoped_ptr<internal::WorkspaceController> workspace_controller_;
   scoped_ptr<internal::ShelfLayoutController> shelf_layout_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace aura_shell
 
 #endif  // UI_AURA_SHELL_SHELL_H_