New OOBE implementation skeleton using WUG toolkit.

ui/oobe/oobe_export.h

Index: ui/oobe/oobe_export.h
diff --git a/ui/oobe/oobe_export.h b/ui/oobe/oobe_export.h
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+// Copyright (c) 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 UI_OOBE_OOBE_EXPORT_H_
+#define UI_OOBE_OOBE_EXPORT_H_
+
+// Defines OOBE_UI_EXPORT so that functionality implemented by the
+// keyboard module can be exported to consumers.
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(OOBE_IMPLEMENTATION)
+#define OOBE_EXPORT __declspec(dllexport)
+#else
+#define OOBE_EXPORT __declspec(dllimport)
+#endif  // defined(OOBE_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#if defined(OOBE_IMPLEMENTATION)
+#define OOBE_EXPORT __attribute__((visibility("default")))
+#else
+#define OOBE_EXPORT
+#endif
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define OOBE_EXPORT
+#endif
+
+#endif  // UI_OOBE_OOBE_EXPORT_H_