Mojo: Eliminate duplicate C API symbols

mojo/edk/embedder/entrypoints.h

+// Copyright 2016 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 MOJO_EDK_EMBEDDER_ENTRYPOINTS_H_
+#define MOJO_EDK_EMBEDDER_ENTRYPOINTS_H_
+
+#include "mojo/edk/system/system_impl_export.h"
+#include "mojo/public/c/system/thunks.h"
+
+namespace mojo {
+namespace edk {
+
+MOJO_SYSTEM_IMPL_EXPORT MojoSystemThunks MakeSystemThunks();

[jam, 2016/06/08 16:04:16]

nit: add comment

+
+}  // namespace edk
+}  // namespace mojo
+
+#endif  // MOJO_EDK_EMBEDDER_ENTRYPOINTS_H_