Refactored OpenGL embedder that works on Android, Mac or Linux.

runtime/embedders/openglui/common/extension.h

Index: runtime/embedders/openglui/common/extension.h
===================================================================
--- runtime/embedders/openglui/common/extension.h	(revision 0)
+++ runtime/embedders/openglui/common/extension.h	(revision 0)
@@ -0,0 +1,18 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#ifndef EMBEDDERS_OPENGLUI_COMMON_EXTENSION_H_
+#define EMBEDDERS_OPENGLUI_COMMON_EXTENSION_H_
+
+#include "include/dart_api.h"
+
+Dart_NativeFunction ResolveName(Dart_Handle name, int argc);
+
+extern int32_t PlayBackgroundSound(const char* path);
+extern void StopBackgroundSound();
+extern int32_t LoadSoundSample(const char* path);
+extern int32_t PlaySoundSample(const char* path);
+
+#endif  // EMBEDDERS_OPENGLUI_COMMON_EXTENSION_H_
+