Ports SystemModalContainerLayoutManager to ash/common

ash/mus/bridge/wm_window_mus.cc

 // Copyright 2016 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.
 
 #include "ash/mus/bridge/wm_window_mus.h"
 
 #include "ash/common/wm/container_finder.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_layout_manager.h"
 #include "ash/common/wm_transient_window_observer.h"
@@ skipping 362 matching lines @@
     NOTIMPLEMENTED();
     return 0;
   }
 
   if (key == WmWindowProperty::TOP_VIEW_INSET) {
     // TODO: need support for TOP_VIEW_INSET: http://crbug.com/615100.
     NOTIMPLEMENTED();
     return 0;
   }
 
+  if (key == WmWindowProperty::MODAL_TYPE) {
+    // TODO: WindowTree::SetModalWindow() needs to route through WindowManager
+    // so wm can position. http://crbug.com/645996.
+    NOTIMPLEMENTED();
+    return static_cast<int>(ui::MODAL_TYPE_NONE);
+  }
+
   NOTREACHED();
   return 0;
 }
 
 void WmWindowMus::SetIntProperty(WmWindowProperty key, int value) {
   if (key == WmWindowProperty::SHELF_ID) {
     NOTIMPLEMENTED();
     return;
   }
 
@@ skipping 518 matching lines @@
 }
 
 void WmWindowMus::OnTransientChildRemoved(ui::Window* window,
                                           ui::Window* transient) {
   FOR_EACH_OBSERVER(WmTransientWindowObserver, transient_observers_,
                     OnTransientChildRemoved(this, Get(transient)));
 }
 
 }  // namespace mus
 }  // namespace ash