[headless] Initial skeleton of headless/public/

headless/public/headless_export.h

Index: headless/public/headless_export.h
diff --git a/headless/public/headless_export.h b/headless/public/headless_export.h
new file mode 100644
index 0000000000000000000000000000000000000000..2266fd93aa17f4ca46ed772b740a9b072f7ecdc8
--- /dev/null
+++ b/headless/public/headless_export.h
@@ -0,0 +1,29 @@
+// 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 HEADLESS_PUBLIC_HEADLESS_EXPORT_H_
+#define HEADLESS_PUBLIC_HEADLESS_EXPORT_H_
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(HEADLESS_IMPLEMENTATION)
+#define HEADLESS_EXPORT __declspec(dllexport)
+#else
+#define HEADLESS_EXPORT __declspec(dllimport)
+#endif  // defined(HEADLESS_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#if defined(HEADLESS_IMPLEMENTATION)
+#define HEADLESS_EXPORT __attribute__((visibility("default")))
+#else
+#define HEADLESS_EXPORT
+#endif
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define HEADLESS_EXPORT
+#endif
+
+#endif  // HEADLESS_PUBLIC_HEADLESS_EXPORT_H_