Restore aura support from Mojo repo.

mandoline/ui/aura/aura_init.h

Index: mandoline/ui/aura/aura_init.h
diff --git a/mandoline/ui/aura/aura_init.h b/mandoline/ui/aura/aura_init.h
new file mode 100644
index 0000000000000000000000000000000000000000..abe833fa6ade244c95f753d63b756449461be5ba
--- /dev/null
+++ b/mandoline/ui/aura/aura_init.h
@@ -0,0 +1,28 @@
+// 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 MANDOLINE_UI_AURA_AURA_INIT_H_
+#define MANDOLINE_UI_AURA_AURA_INIT_H_
+
+#include "base/memory/scoped_ptr.h"
+
+namespace mandoline {
+
+class ScreenMojo;
+
+// Sets up necessary state for aura when run with the viewmanager.
+class AuraInit {
+ public:
+  AuraInit();
+  ~AuraInit();
+
+ private:
+  scoped_ptr<ScreenMojo> screen_;
+
+  DISALLOW_COPY_AND_ASSIGN(AuraInit);
+};
+
+}  // namespace mandoline
+
+#endif  // MANDOLINE_UI_AURA_AURA_INIT_H_