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

runtime/embedders/openglui/emulator/emulator_graphics_handler.cc

+// 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.
+
+#include "embedders/openglui/emulator/emulator_graphics_handler.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+EmulatorGraphicsHandler::EmulatorGraphicsHandler(int argc,
+                                                 char** argv)
+  : GLGraphicsHandler() {
+  glutInit(&argc, argv);
+  width_ = 480;
+  height_ = 800;
+  for (int i = 1; i < argc; i++) {
+    if (argv[i][0] == '-') {
+      int next_arg = i + 1;
+      if (next_arg < argc && strcmp(argv[i], "-w") == 0) {
+        width_ = static_cast<size_t>(atoi(argv[i = next_arg]));
+      } else if (next_arg < argc && strcmp(argv[i], "-h") == 0) {
+        height_ = static_cast<size_t>(atoi(argv[i = next_arg]));
+      }
+    }
+  }
+}
+
+int32_t EmulatorGraphicsHandler::Start() {
+  glutInitWindowSize(width_, height_);
+  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
+  glutCreateWindow("Dart");
+  return 0;
+}
+
+void EmulatorGraphicsHandler::Stop() {
+  exit(0);
+}
+