Change ui::Event::time_stamp from TimeDelta to TimeTicks

ui/views/mus/window_manager_connection_unittest.cc

Index: ui/views/mus/window_manager_connection_unittest.cc
diff --git a/ui/views/mus/window_manager_connection_unittest.cc b/ui/views/mus/window_manager_connection_unittest.cc
index 8d86447c5be714205ebc59c2c8dab1aa11163a75..967b5ad83d0f64a9593e3529092820ef1ca34cb9 100644
--- a/ui/views/mus/window_manager_connection_unittest.cc
+++ b/ui/views/mus/window_manager_connection_unittest.cc
@@ -68,9 +68,9 @@ TEST_F(WindowManagerConnectionTest, PointerWatcher) {
   WindowManagerConnection* connection = WindowManagerConnection::Get();
   ASSERT_TRUE(connection);
   ui::MouseEvent mouse_pressed(ui::ET_MOUSE_PRESSED, gfx::Point(), gfx::Point(),
-                               base::TimeDelta(), ui::EF_NONE, 0);
+                               base::TimeTicks(), ui::EF_NONE, 0);
   ui::TouchEvent touch_pressed(ui::ET_TOUCH_PRESSED, gfx::Point(), 1,
-                               base::TimeDelta());
+                               base::TimeTicks());
   ui::KeyEvent key_pressed(ui::ET_KEY_PRESSED, ui::VKEY_A, 0);
 
   // PointerWatchers receive mouse events.