Do not hide the cursor on a key up

ash/ash.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These files lists are shared with the GN build.
     'ash_sources': [
       'accelerators/accelerator_commands.cc',
@@ skipping 804 matching lines @@
       'test/ash_unittests.cc',
       'tooltips/tooltip_controller_unittest.cc',
       'touch/touch_observer_hud_unittest.cc',
       'touch/touch_transformer_controller_unittest.cc',
       'touch/touchscreen_util_unittest.cc',
       'utility/partial_screenshot_controller_unittest.cc',
       'virtual_keyboard_controller_unittest.cc',
       'wm/always_on_top_controller_unittest.cc',
       'wm/app_list_controller_unittest.cc',
       'wm/ash_native_cursor_manager_unittest.cc',
+      'wm/cursor_manager_chromeos_unittest.cc',
       'wm/dock/docked_window_layout_manager_unittest.cc',
       'wm/dock/docked_window_resizer_unittest.cc',
       'wm/drag_window_resizer_unittest.cc',
       'wm/gestures/overview_gesture_handler_unittest.cc',
       'wm/immersive_fullscreen_controller_unittest.cc',
       'wm/lock_layout_manager_unittest.cc',
       'wm/lock_state_controller_unittest.cc',
       'wm/maximize_mode/accelerometer_test_data_literals.cc',
       'wm/maximize_mode/maximize_mode_controller_unittest.cc',
       'wm/maximize_mode/maximize_mode_window_manager_unittest.cc',
@@ skipping 453 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'ash_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }