It is time.

ui/views/corewm/cursor_height_provider_win.h

Index: ui/views/corewm/cursor_height_provider_win.h
diff --git a/ui/views/corewm/cursor_height_provider_win.h b/ui/views/corewm/cursor_height_provider_win.h
deleted file mode 100644
index c93134491f2a1346e32bfcb79dcff4efc8b99af6..0000000000000000000000000000000000000000
--- a/ui/views/corewm/cursor_height_provider_win.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2014 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_VIEWS_COREWM_CURSOR_HEIGHT_PROVIDER_WIN_H_
-#define UI_VIEWS_COREWM_CURSOR_HEIGHT_PROVIDER_WIN_H_
-
-namespace views {
-namespace corewm {
-
-// Gets the visible height of current cursor.
-//
-// The height is offset between cursor's hot point and it's
-// bottom edge, derived from first non-transparent row of cursor's mask.
-
-int GetCurrentCursorVisibleHeight();
-
-}  // namespace corewm
-}  // namespace views
-
-#endif  // UI_VIEWS_COREWM_CURSOR_HEIGHT_PROVIDER_WIN_H_