Start to decouple display::Display from ws::PlatformDisplay.

services/ui/ws/window_manager_state_unittest.cc

 // Copyright 2016 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 "services/ui/ws/window_manager_state.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "services/service_manager/public/interfaces/connector.mojom.h"
 #include "services/ui/common/accelerator_util.h"
 #include "services/ui/ws/accelerator.h"
 #include "services/ui/ws/display.h"
 #include "services/ui/ws/display_manager.h"
 #include "services/ui/ws/platform_display.h"
-#include "services/ui/ws/platform_display_init_params.h"
 #include "services/ui/ws/test_change_tracker.h"
 #include "services/ui/ws/test_server_window_delegate.h"
 #include "services/ui/ws/test_utils.h"
 #include "services/ui/ws/window_manager_access_policy.h"
 #include "services/ui/ws/window_manager_display_root.h"
 #include "services/ui/ws/window_manager_state.h"
 #include "services/ui/ws/window_server.h"
 #include "services/ui/ws/window_tree.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event.h"
@@ skipping 553 matching lines @@
       base::TimeTicks());
   window_manager_state()->ProcessEvent(move, 0);
   // The event isn't over a valid target, which should trigger resetting the
   // cursor to POINTER.
   EXPECT_EQ(ui::mojom::Cursor::POINTER, display_test_api.last_cursor());
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui