Initial commit for Chrome.* APIs in Dart

tools/dom/src/chrome/chrome.dart

+// Copyright (c) 2012, 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.
+
+part of chrome;
+
+// chrome.app
+class API_ChromeApp {
+  /*
+   * JS Variable
+   */
+  Object _jsObject;
+
+  /*
+   * Members
+   */
+  API_ChromeAppWindow window;
+  API_ChromeAppRuntime runtime;
+
+  /*
+   * Constructor
+   */
+  API_ChromeApp(this._jsObject) {
+    var window_object = JS('', '#.window', this._jsObject);
+    if (window_object == null)
+      throw new UnsupportedError('Not supported by current browser.');
+    window = new API_ChromeAppWindow(window_object);
+
+    var runtime_object = JS('', '#.runtime', this._jsObject);
+    if (runtime_object == null)
+      throw new UnsupportedError('Not supported by current browser.');
+    runtime = new API_ChromeAppRuntime(runtime_object);
+  }
+}
+
+// chrome
+class API_Chrome {
+  /*
+   * JS Variable
+   */
+  Object _jsObject;
+
+  /*
+   * Members
+   */
+  API_ChromeApp app;
+
+  /*
+   * Constructor
+   */
+  API_Chrome() {
+    this._jsObject = JS("Object", "chrome");
+    if (this._jsObject == null)
+      throw new UnsupportedError('Not supported by current browser.');
+
+    var app_object = JS('', '#.app', this._jsObject);
+    if (app_object == null)
+      throw new UnsupportedError('Not supported by current browser.');
+    app = new API_ChromeApp(app_object);
+  }
+}
+
+// The final chrome objects
+final API_Chrome chrome = new API_Chrome();