Implement ScreenManagerOzoneExternal::RequestCloseDisplay

services/ui/display/screen_manager_ozone_external.cc

 // 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.
 
 #include "services/ui/display/screen_manager_ozone_external.h"
 
 #include <memory>
 
 #include "services/service_manager/public/cpp/interface_registry.h"
 #include "ui/display/types/display_constants.h"
 
 namespace display {
 
 // static
 std::unique_ptr<ScreenManager> ScreenManager::Create() {
   return base::MakeUnique<ScreenManagerOzoneExternal>();
 }
 
 ScreenManagerOzoneExternal::ScreenManagerOzoneExternal() {}
 
 ScreenManagerOzoneExternal::~ScreenManagerOzoneExternal() {}
 
 void ScreenManagerOzoneExternal::AddInterfaces(
     service_manager::InterfaceRegistry* registry) {}
 
-void ScreenManagerOzoneExternal::Init(ScreenManagerDelegate* delegate) {}
+void ScreenManagerOzoneExternal::Init(ScreenManagerDelegate* delegate) {
+  DCHECK(delegate);
+  delegate_ = delegate;
+}
 
-void ScreenManagerOzoneExternal::RequestCloseDisplay(int64_t display_id) {}
+void ScreenManagerOzoneExternal::RequestCloseDisplay(int64_t display_id) {
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&ScreenManagerDelegate::OnDisplayRemoved,
+                            base::Unretained(delegate_), display_id));
+}
 
 int64_t ScreenManagerOzoneExternal::GetPrimaryDisplayId() const {
   return kInvalidDisplayId;
 }
 
 }  // namespace display