components: Add Exosphere component.

components/exo/wayland/scoped_wl_types.h

Index: components/exo/wayland/scoped_wl_types.h
diff --git a/components/exo/wayland/scoped_wl_types.h b/components/exo/wayland/scoped_wl_types.h
new file mode 100644
index 0000000000000000000000000000000000000000..4ee819ded8322bff522d9dd2c46c9a5c423b1c06
--- /dev/null
+++ b/components/exo/wayland/scoped_wl_types.h
@@ -0,0 +1,31 @@
+// Copyright 2015 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 COMPONENTS_EXO_WAYLAND_SCOPED_WL_TYPES_H_
+#define COMPONENTS_EXO_WAYLAND_SCOPED_WL_TYPES_H_
+
+#include "base/scoped_generic.h"
+
+extern "C" {
+struct wl_display;
+}
+
+namespace exo {
+namespace wayland {
+namespace internal {
+
+struct ScopedWLDisplayTraits {
+  static wl_display* InvalidValue() { return nullptr; }
+  static void Free(wl_display* display);
+};
+
+}  // namespace internal
+
+using ScopedWLDisplay =
+    base::ScopedGeneric<wl_display*, internal::ScopedWLDisplayTraits>;
+
+}  // namespace wayland
+}  // namespace exo
+
+#endif  // COMPONENTS_EXO_WAYLAND_SCOPED_WL_TYPES_H_