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

ash/wm/window_util.h

Index: ash/wm/window_util.h
diff --git a/ash/wm/window_util.h b/ash/wm/window_util.h
index d1b95504b2dd98662e2040255ae282347ea2acf9..1697eebc694595a1acb9002bec14566a40ab1245 100644
--- a/ash/wm/window_util.h
+++ b/ash/wm/window_util.h
@@ -21,6 +21,7 @@ class Point;
 
 namespace ui {
 class Event;
+class EventHandler;
 }
 
 namespace ash {
@@ -76,6 +77,23 @@ ASH_EXPORT void SetSnapsChildrenToPhysicalPixelBoundary(
 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