Ensure that the cursor visibility state is restored correctly on CursorManager creation.

ui/wm/core/cursor_manager_unittest.cc

 // Copyright (c) 2013 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.
 
 #include "ui/wm/core/cursor_manager.h"
 
 #include "base/macros.h"
 #include "ui/aura/client/cursor_client_observer.h"
 #include "ui/aura/test/aura_test_base.h"
 #include "ui/wm/core/native_cursor_manager.h"
@@ skipping 307 matching lines @@
   EXPECT_FALSE(observer_a.is_cursor_visible());
 
   // Show the cursor using ShowCursor().
   observer_a.reset();
   observer_b.reset();
   cursor_manager_.ShowCursor();
   EXPECT_TRUE(observer_a.did_visibility_change());
   EXPECT_FALSE(observer_b.did_visibility_change());
   EXPECT_TRUE(observer_a.is_cursor_visible());
 }
+
+// This test validates that the cursor visiblity state is restored when a
+// CursorManager instance is destroyed and recreated.
+TEST(CursorManagerCreateDestroyTest, VisibilityTest) {
+  // This block ensures that the cursor is hidden when the CursorManager
+  // instance is destroyed.
+  {
+    wm::CursorManager cursor_manager1(
+        scoped_ptr<wm::NativeCursorManager>(new TestingCursorManager));
+    cursor_manager1.ShowCursor();
+    EXPECT_TRUE(cursor_manager1.IsCursorVisible());
+    cursor_manager1.HideCursor();
+    EXPECT_FALSE(cursor_manager1.IsCursorVisible());
+  }
+
+  // This block validates that the cursor is hidden initially. It ensures that
+  // the cursor is visible when the CursorManager instance is destroyed.
+  {
+    wm::CursorManager cursor_manager2(
+      scoped_ptr<wm::NativeCursorManager>(new TestingCursorManager));
+    EXPECT_FALSE(cursor_manager2.IsCursorVisible());
+    cursor_manager2.ShowCursor();
+    EXPECT_TRUE(cursor_manager2.IsCursorVisible());
+  }
+
+  // This block validates that the cursor is visible initially. It then
+  // performs normal cursor visibility operations.
+  {
+    wm::CursorManager cursor_manager3(
+      scoped_ptr<wm::NativeCursorManager>(new TestingCursorManager));
+    EXPECT_TRUE(cursor_manager3.IsCursorVisible());
+    cursor_manager3.HideCursor();
+    EXPECT_FALSE(cursor_manager3.IsCursorVisible());
+  }
+}