Implement cycle window forward/backward by keyboard shortcuts.

ui/aura_shell/test/test_shell_delegate.h

Index: ui/aura_shell/test/test_shell_delegate.h
diff --git a/ui/aura_shell/test/test_shell_delegate.h b/ui/aura_shell/test/test_shell_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..6811d4574e6204eaf66e13600916c15bb3475719
--- /dev/null
+++ b/ui/aura_shell/test/test_shell_delegate.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2011 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.
+
+#ifndef UI_AURA_SHELL_TEST_TEST_SHELL_DELEGATE_H_
+#define UI_AURA_SHELL_TEST_TEST_SHELL_DELEGATE_H_
+#pragma once
+
+#include "base/compiler_specific.h"
+#include "ui/aura_shell/shell_delegate.h"
+
+namespace aura_shell {
+namespace test {
+
+class TestShellDelegate : public ShellDelegate {
+ public:
+  TestShellDelegate();
+  virtual ~TestShellDelegate();
+
+  // Overridden from ShellDelegate:
+  virtual void CreateNewWindow() OVERRIDE;
+  virtual views::Widget* CreateStatusArea() OVERRIDE;
+  virtual void RequestAppListWidget(
+      const gfx::Rect& bounds,
+      const SetWidgetCallback& callback) OVERRIDE;
+  virtual void LauncherItemClicked(const LauncherItem& item) OVERRIDE;
+  virtual bool ConfigureLauncherItem(LauncherItem* item) OVERRIDE;
+};
+
+}  // namespace test
+}  // namespace aura_shell
+
+#endif  // UI_AURA_SHELL_TEST_TEST_SHELL_DELEGATE_H_