Rebuild the debug panel in the browser demo with sky.

examples/window_manager/debug_panel_host.mojom

Index: examples/window_manager/debug_panel_host.mojom
diff --git a/examples/window_manager/debug_panel_host.mojom b/examples/window_manager/debug_panel_host.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..00c1749f8745acda7b11f6c647a3c7035d92f343
--- /dev/null
+++ b/examples/window_manager/debug_panel_host.mojom
@@ -0,0 +1,18 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module mojo.examples;
+
+import "mojo/services/navigation/public/interfaces/navigation.mojom";
+
+interface DebugPanelHost {
+  // Closes the top.
+  CloseTopWindow();
+
+  // Sends a navigate request.
+  NavigateTo(string url);
+
+  // Sets the navigation target.
+  SetNavigationTarget(mojo.Target target);
+};