cros: Basic test infrastructure for views-based lock screen.

ash/login/ui/lock_screen_test.h

Index: ash/login/ui/lock_screen_test.h
diff --git a/ash/login/ui/lock_screen_test.h b/ash/login/ui/lock_screen_test.h
new file mode 100644
index 0000000000000000000000000000000000000000..d5be8427e62f41e58485d0eef57ea4e26ad0fe8a
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+++ b/ash/login/ui/lock_screen_test.h
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+// Copyright 2017 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 ASH_LOGIN_UI_LOCK_SCREEN_TEST_H_
+#define ASH_LOGIN_UI_LOCK_SCREEN_TEST_H_
+
+#include "base/macros.h"
+#include "ui/views/test/widget_test.h"
+
+namespace views {
+class Widget;
+}
+
+namespace ash {
+
+// TODO(jdufault): Intercept mojo coming out of lock screen.
+// TODO(jdufault): Provide methods to send mojo calls to lock screen.
+
+// Base test fixture for testing the views-based lock screen. This makes it easy
+// to instantiate the lock screen view hierarchy.
+class LockScreenTest : public views::test::WidgetTest {
+ public:
+  LockScreenTest();
+  ~LockScreenTest() override;
+
+  // Press the submit button.
+  void PressSubmitButton();
+
+  // views::test::WidgetTest:
+  void SetUp() override;
+  void TearDown() override;
+
+ protected:
+  views::Widget* widget_ = nullptr;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LockScreenTest);
+};
+
+}  // ash
+
+#endif  // ASH_LOGIN_UI_LOCK_SCREEN_TEST_H_