Service Manager: Remove ServiceContext* arg from Service::OnStart()

ash/touch_hud/mus/touch_hud_application.h

 // 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.
 
 #ifndef ASH_TOUCH_HUD_MUS_TOUCH_HUD_APPLICATION_H_
 #define ASH_TOUCH_HUD_MUS_TOUCH_HUD_APPLICATION_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 14 matching lines @@
 class TouchHudApplication
     : public service_manager::Service,
       public mash::mojom::Launchable,
       public service_manager::InterfaceFactory<mash::mojom::Launchable> {
  public:
   TouchHudApplication();
   ~TouchHudApplication() override;
 
  private:
   // service_manager::Service:
-  void OnStart(service_manager::ServiceContext* context) override;
+  void OnStart() override;
   bool OnConnect(const service_manager::ServiceInfo& remote_info,
                  service_manager::InterfaceRegistry* registry) override;
 
   // mojom::Launchable:
   void Launch(uint32_t what, mash::mojom::LaunchMode how) override;
 
   // service_manager::InterfaceFactory<mojom::Launchable>:
   void Create(const service_manager::Identity& remote_identity,
               mash::mojom::LaunchableRequest request) override;
 
   mojo::Binding<mash::mojom::Launchable> binding_;
   views::Widget* widget_ = nullptr;
 
   std::unique_ptr<views::AuraInit> aura_init_;
   std::unique_ptr<views::WindowManagerConnection> window_manager_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchHudApplication);
 };
 
 }  // namespace touch_hud
 }  // namespace ash
 
 #endif  // ASH_TOUCH_HUD_MUS_TOUCH_HUD_APPLICATION_H_