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

ash/touch_hud/mus/touch_hud_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/touch_hud/mus/touch_hud_application.h"
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/touch_hud/touch_hud_renderer.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 49 matching lines @@
 
   views::WindowManagerConnection* window_manager_connection_;
   TouchHudRenderer* touch_hud_renderer_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchHudUI);
 };
 
 TouchHudApplication::TouchHudApplication() : binding_(this) {}
 TouchHudApplication::~TouchHudApplication() {}
 
-void TouchHudApplication::OnStart(service_manager::ServiceContext* context) {
+void TouchHudApplication::OnStart() {
   aura_init_ = base::MakeUnique<views::AuraInit>(
-      context->connector(), context->identity(), "views_mus_resources.pak");
+      context()->connector(), context()->identity(), "views_mus_resources.pak");
   window_manager_connection_ = views::WindowManagerConnection::Create(
-      context->connector(), context->identity());
+      context()->connector(), context()->identity());
 }
 
 bool TouchHudApplication::OnConnect(
     const service_manager::ServiceInfo& remote_info,
     service_manager::InterfaceRegistry* registry) {
   registry->AddInterface<mash::mojom::Launchable>(this);
   return true;
 }
 
 void TouchHudApplication::Launch(uint32_t what, mash::mojom::LaunchMode how) {
@@ skipping 27 matching lines @@
 
 void TouchHudApplication::Create(
     const service_manager::Identity& remote_identity,
     mash::mojom::LaunchableRequest request) {
   binding_.Close();
   binding_.Bind(std::move(request));
 }
 
 }  // namespace touch_hud
 }  // namespace ash