Propagates window type properties during aura-mus window creation

ui/aura/mus/property_utils.h

Index: ui/aura/mus/property_utils.h
diff --git a/ui/aura/mus/property_utils.h b/ui/aura/mus/property_utils.h
new file mode 100644
index 0000000000000000000000000000000000000000..0106d966735084e6ae01640b9ca591f009853e61
--- /dev/null
+++ b/ui/aura/mus/property_utils.h
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+// 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.
+
+#ifndef UI_AURA_MUS_PROPERTY_UTILS_H_
+#define UI_AURA_MUS_PROPERTY_UTILS_H_
+
+#include <stdint.h>
+
+#include "ui/aura/aura_export.h"
+
+namespace ui {
+namespace mojom {
+enum class WindowType;
+}
+}
+
+namespace aura {
+
+class Window;
+
+// Configures the two window type properties on |window|. Specifically this
+// sets the property client::kWindowTypeKey as well as calling SetType().
+// This *must* be called before Init().
+AURA_EXPORT void SetWindowType(Window* window,
+                               ui::mojom::WindowType window_type);
+
+}  // namespace aura
+
+#endif  // UI_AURA_MUS_PROPERTY_UTILS_H_