Migrate all LayoutTests/dart/dom to main repo.

client/tests/client/dom/EventsTest.dart

Index: client/tests/client/dom/EventsTest.dart
diff --git a/client/tests/client/dom/EventsTest.dart b/client/tests/client/dom/EventsTest.dart
new file mode 100644
index 0000000000000000000000000000000000000000..1d17007d2075ddf2d85f0f24e78baa382d764848
--- /dev/null
+++ b/client/tests/client/dom/EventsTest.dart
@@ -0,0 +1,60 @@
+#library('EventsTest');
+#import('../../../testing/unittest/unittest.dart');
+#import('dart:dom');
+
+main() {
+  forLayoutTests();
+  test('TimeStamp', () {
+    Event event = document.createEvent('Event');
+
+    int timeStamp = event.timeStamp;
+    Expect.isTrue(timeStamp > 0);
+  });
+  // The next test is not asynchronous because [dispatchEvent] fires the event
+  // and event listener synchronously.
+  test('EventTarget', () {
+    HTMLElement element = window.document.createElement('test');
+    element.id = 'eventtarget';
+    window.document.body.appendChild(element);
+
+    int invocationCounter = 0;
+    void handler(Event e) {
+      Expect.equals('test', e.type);
+      HTMLElement target = e.target;
+      Expect.identical(element, target);
+      invocationCounter++;
+    }
+
+    Event event = window.document.createEvent('Event');
+    event.initEvent('test', true, false);
+
+    invocationCounter = 0;
+    element.dispatchEvent(event);
+    Expect.equals(0, invocationCounter);
+
+    element.addEventListener('test', handler, false);
+    invocationCounter = 0;
+    element.dispatchEvent(event);
+    Expect.equals(1, invocationCounter);
+
+    element.removeEventListener('test', handler, false);
+    invocationCounter = 0;
+    element.dispatchEvent(event);
+    Expect.equals(0, invocationCounter);
+
+    element.addEventListener('test', handler, false);
+    invocationCounter = 0;
+    element.dispatchEvent(event);
+    Expect.equals(1, invocationCounter);
+
+    element.addEventListener('test', handler, false);
+    invocationCounter = 0;
+    element.dispatchEvent(event);
+    Expect.equals(1, invocationCounter);
+  });
+  test('InitMouseEvent', () {
+    HTMLDivElement div = window.document.createElement('div');
+    MouseEvent event = window.document.createEvent('MouseEvent');
+    event.initMouseEvent('zebra', true, true, window, 0, 1, 2, 3, 4, false, false, false, false, 0, div);
+  });
+}