[mus+ash] Removes WmWindow from ash/wm/overview and ash/wm/workspace

ash/wm/window_util.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_WM_WINDOW_UTIL_H_
 #define ASH_WM_WINDOW_UTIL_H_
 
 #include <stdint.h>
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "ui/base/ui_base_types.h"
 
 namespace aura {
 class Window;
 }
 
 namespace gfx {
 class Point;
 }
 
 namespace ui {
 class Event;
+class EventHandler;
 }
 
 namespace ash {
 namespace wm {
 
 // Utility functions for window activation.
 ASH_EXPORT void ActivateWindow(aura::Window* window);
 ASH_EXPORT void DeactivateWindow(aura::Window* window);
 ASH_EXPORT bool IsActiveWindow(aura::Window* window);
 ASH_EXPORT aura::Window* GetActiveWindow();
@@ skipping 35 matching lines @@
 // Mark the container window so that InstallSnapLayoutManagerToContainers
 // installs the SnapToPixelLayoutManager.
 ASH_EXPORT void SetSnapsChildrenToPhysicalPixelBoundary(
     aura::Window* container);
 
 // Convenience for window->delegate()->GetNonClientComponent(location) that
 // returns HTNOWHERE if window->delegate() is null.
 ASH_EXPORT int GetNonClientComponent(aura::Window* window,
                                      const gfx::Point& location);
 
+// Requests the |window| to close and destroy itself. This is intended to
+// forward to an associated widget.
+ASH_EXPORT void CloseWidgetForWindow(aura::Window* window);
+
+// Adds or removes a handler to receive events targeted at this window, before
+// this window handles the events itself; the handler does not receive events
+// from embedded windows. This only supports windows with internal widgets;
+// see ash::GetInternalWidgetForWindow(). Ownership of the handler is not
+// transferred.
+//
+// Also note that the target of these events is always an aura::Window.
+ASH_EXPORT void AddLimitedPreTargetHandlerForWindow(ui::EventHandler* handler,
+                                                    aura::Window* window);
+ASH_EXPORT void RemoveLimitedPreTargetHandlerForWindow(
+    ui::EventHandler* handler,
+    aura::Window* window);
+
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_UTIL_H_