Added additional logging to flaky test "LoginGuestTest.CursorShown"

ui/gfx/geometry/test/rect_test_util.h

+// 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 UI_GFX_GEOMETRY_TEST_RECT_TEST_UTIL_H_
+#define UI_GFX_GEOMETRY_TEST_RECT_TEST_UTIL_H_
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/gfx_export.h"
+
+namespace gfx {
+namespace test {
+
+testing::AssertionResult RectContains(const gfx::Rect& outer_rect,
+                                      const gfx::Rect& inner_rect);
+
+}  // namespace test
+}  // namespace gfx
+
+#endif  // UI_GFX_GEOMETRY_TEST_RECT_TEST_UTIL_H_