Add service name constant for UI service.

ui/aura/mus/window_tree_client.cc

 // 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.
 
 #include "ui/aura/mus/window_tree_client.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "services/service_manager/public/cpp/connector.h"
+#include "services/ui/public/interfaces/constants.mojom.h"
 #include "services/ui/public/interfaces/window_manager_window_tree_factory.mojom.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/drag_drop_client.h"
 #include "ui/aura/client/transient_window_client.h"
 #include "ui/aura/mus/capture_synchronizer.h"
 #include "ui/aura/mus/drag_drop_controller_mus.h"
 #include "ui/aura/mus/focus_synchronizer.h"
 #include "ui/aura/mus/in_flight_change.h"
 #include "ui/aura/mus/input_method_mus.h"
 #include "ui/aura/mus/property_converter.h"
@@ skipping 146 matching lines @@
 
   client::GetTransientWindowClient()->RemoveObserver(this);
 }
 
 void WindowTreeClient::ConnectViaWindowTreeFactory(
     service_manager::Connector* connector) {
   // The client id doesn't really matter, we use 101 purely for debugging.
   client_id_ = 101;
 
   ui::mojom::WindowTreeFactoryPtr factory;
-  connector->ConnectToInterface("ui", &factory);
+  connector->ConnectToInterface(ui::mojom::kServiceName, &factory);
   ui::mojom::WindowTreePtr window_tree;
   factory->CreateWindowTree(GetProxy(&window_tree),
                             binding_.CreateInterfacePtrAndBind());
   SetWindowTree(std::move(window_tree));
 }
 
 void WindowTreeClient::ConnectAsWindowManager(
     service_manager::Connector* connector) {
   DCHECK(window_manager_delegate_);
 
   ui::mojom::WindowManagerWindowTreeFactoryPtr factory;
-  connector->ConnectToInterface("ui", &factory);
+  connector->ConnectToInterface(ui::mojom::kServiceName, &factory);
   ui::mojom::WindowTreePtr window_tree;
   factory->CreateWindowTree(GetProxy(&window_tree),
                             binding_.CreateInterfacePtrAndBind());
   SetWindowTree(std::move(window_tree));
 }
 
 void WindowTreeClient::SetClientArea(
     Window* window,
     const gfx::Insets& client_area,
     const std::vector<gfx::Rect>& additional_client_areas) {
@@ skipping 1324 matching lines @@
   return ScheduleInFlightChange(base::MakeUnique<InFlightCaptureChange>(
       this, capture_synchronizer_.get(), window));
 }
 
 uint32_t WindowTreeClient::CreateChangeIdForFocus(WindowMus* window) {
   return ScheduleInFlightChange(base::MakeUnique<InFlightFocusChange>(
       this, focus_synchronizer_.get(), window));
 }
 
 }  // namespace aura