Add browser launching functionality.

tools/testing/dart/launch_browser.dart

+// 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.
+
+/**
+ * Simple command line interface to launcing browsers.

[kustermann, 2013/05/29 11:58:00]

launcing -> launching

[ricow1, 2013/05/29 12:08:23]

Done.

+ * Uses the browser_controller framework.
+ * The usage is:
+ *   DARTBIN launch_browser.dart BROWSER_NAME URL
+ * DARTBIN should be the checked in stable binary.
+ */
+
+import "dart:io";
+import "browser_controller.dart";
+
+
+bool supportedBrowser(String browser) {
+  return 
+}

[kustermann, 2013/05/29 11:58:00]

This function can be removed now.

[ricow1, 2013/05/29 12:08:23]

Done.

+
+void printHelp() {
+  print("Usage pattern:");
+  print("launch_browser.dart browser url");
+  print("Supported browsers: ${Browser.SUPPORTED_BROWSERS}");
+}
+
+void main() {
+  var args = new Options().arguments;
+  if (args.length != 2) {
+    print("Wrong number of arguments, please pass in exactly two arguments");
+    printHelp();
+    return;
+  }
+
+  if (!Browser.supportedBrowser(args[0])) {
+    print("Specified browser not supported");
+    printHelp();
+    return;
+  }
+
+  var browser = new Browser.byName(args[0]);
+  browser.start(args[1]);
+
+}