1 files changed, 48 insertions, 0 deletions
diff --git a/chromium/ash/wm/stacking_controller.h b/chromium/ash/wm/stacking_controller.h
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+++ b/chromium/ash/wm/stacking_controller.h
@@ -0,0 +1,48 @@
+// 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_WM_STACKING_CONTROLLER_H_
+#define ASH_WM_STACKING_CONTROLLER_H_
+
+#include "ash/ash_export.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/aura/client/stacking_client.h"
+
+namespace aura{
+class RootWindow;
+}
+
+namespace ash {
+
+namespace internal {
+class AlwaysOnTopController;
+}
+
+class ASH_EXPORT StackingController : public aura::client::StackingClient {
+ public:
+  StackingController();
+  virtual ~StackingController();
+
+  // Overridden from aura::client::StackingClient:
+  virtual aura::Window* GetDefaultParent(aura::Window* context,
+                                         aura::Window* window,
+                                         const gfx::Rect& bounds) OVERRIDE;
+
+ private:
+  // Returns corresponding system modal container for a modal window.
+  // If screen lock is not active, all system modal windows are placed into the
+  // normal modal container.
+  // Otherwise those that originate from LockScreen container and above are
+  // placed in the screen lock modal container.
+  aura::Window* GetSystemModalContainer(aura::RootWindow* root,
+                                        aura::Window* window) const;
+
+  DISALLOW_COPY_AND_ASSIGN(StackingController);
+};
+
+}  // namespace ash
+
+#endif  // ASH_WM_STACKING_CONTROLLER_H_