Add Mojo IPC based input-device service.

ash/mus/sysui_application.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 "ash/mus/sysui_application.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 296 matching lines @@
 
 SysUIApplication::SysUIApplication() {}
 
 SysUIApplication::~SysUIApplication() {}
 
 void SysUIApplication::Initialize(::shell::Connector* connector,
                                   const ::shell::Identity& identity,
                                   uint32_t id) {
   ash_init_.reset(new AshInit());
   ash_init_->Initialize(connector, identity);
+
+  input_device_client_.Initialize(connector);
 }
 
 bool SysUIApplication::AcceptConnection(::shell::Connection* connection) {
   connection->AddInterface<mash::shelf::mojom::ShelfController>(this);
   return true;
 }
 
 void SysUIApplication::Create(
     ::shell::Connection* connection,
     mojo::InterfaceRequest<mash::shelf::mojom::ShelfController> request) {
   mash::shelf::mojom::ShelfController* shelf_controller =
       static_cast<ShelfDelegateMus*>(Shell::GetInstance()->GetShelfDelegate());
   shelf_controller_bindings_.AddBinding(shelf_controller, std::move(request));
 }
 
 }  // namespace sysui
 }  // namespace ash