Moves mash/wm into ash/mus

ash/mus/disconnected_app_handler.h

Index: ash/mus/disconnected_app_handler.h
diff --git a/mash/wm/disconnected_app_handler.h b/ash/mus/disconnected_app_handler.h
similarity index 61%
rename from mash/wm/disconnected_app_handler.h
rename to ash/mus/disconnected_app_handler.h
index 7fb839301de9888eb0f26f7a887d578b6821762b..dfec2c5ced291b19f5b254da92f7fd9e3afcd093 100644
--- a/mash/wm/disconnected_app_handler.h
+++ b/ash/mus/disconnected_app_handler.h
@@ -2,30 +2,30 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MASH_WM_DISCONNECTED_APP_HANDLER_H_
-#define MASH_WM_DISCONNECTED_APP_HANDLER_H_
+#ifndef ASH_MUS_DISCONNECTED_APP_HANDLER_H_
+#define ASH_MUS_DISCONNECTED_APP_HANDLER_H_
 
 #include "base/macros.h"
 #include "components/mus/public/cpp/window_tracker.h"
 
-namespace mash {
-namespace wm {
+namespace ash {
+namespace mus {
 
 // Tracks mus::Windows for when they get disconnected from the embedded app.
 // Currently closes a window upon disconnection.
-class DisconnectedAppHandler : public mus::WindowTracker {
+class DisconnectedAppHandler : public ::mus::WindowTracker {
  public:
   DisconnectedAppHandler();
   ~DisconnectedAppHandler() override;
 
  private:
   // mus::WindowObserver:
-  void OnWindowEmbeddedAppDisconnected(mus::Window* window) override;
+  void OnWindowEmbeddedAppDisconnected(::mus::Window* window) override;
 
   DISALLOW_COPY_AND_ASSIGN(DisconnectedAppHandler);
 };
 
-}  // namespace wm
-}  // namespace mash
+}  // namespace mus
+}  // namespace ash
 
-#endif  // MASH_WM_DISCONNECTED_APP_HANDLER_H_
+#endif  // ASH_MUS_DISCONNECTED_APP_HANDLER_H_