Explicit container priority

athena/common/container_priorities.h

Index: athena/common/container_priorities.h
diff --git a/athena/common/container_priorities.h b/athena/common/container_priorities.h
new file mode 100644
index 0000000000000000000000000000000000000000..0b349967aecfc5503bc2e9fa79515ad111a827ee
--- /dev/null
+++ b/athena/common/container_priorities.h
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+// Copyright 2014 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 ATHENA_COMMON_CONTAINER_PRIORITIES_H_
+#define ATHENA_COMMON_CONTAINER_PRIORITIES_H_
+
+namespace athena {
+
+enum ContainerPriorities {
+  CP_BACKGROUND = 0,
+  CP_DEFAULT,
+  CP_HOME_CARD,
+  CP_VIRTUAL_KEYBOARD,
+  CP_DEBUG,
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_COMMON_CONTAINER_PRIORITIES_H_