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

mash/browser/browser.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 "mash/browser/browser.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 847 matching lines @@
 void Browser::RemoveWindow(views::Widget* window) {
   auto it = std::find(windows_.begin(), windows_.end(), window);
   DCHECK(it != windows_.end());
   windows_.erase(it);
   if (windows_.empty())
     base::MessageLoop::current()->QuitWhenIdle();
 }
 
 std::unique_ptr<navigation::View> Browser::CreateView() {
   navigation::mojom::ViewFactoryPtr factory;
-  context()->connector()->ConnectToInterface("exe:navigation", &factory);
+  context_->connector()->ConnectToInterface("exe:navigation", &factory);
   return base::MakeUnique<navigation::View>(std::move(factory));
 }
 
-void Browser::OnStart() {
-  tracing_.Initialize(context()->connector(), context()->identity().name());
+void Browser::OnStart(service_manager::ServiceContext* context) {
+  context_ = context;
+  tracing_.Initialize(context->connector(), context->identity().name());
 
   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 Browser::OnConnect(const service_manager::ServiceInfo& remote_info,
                         service_manager::InterfaceRegistry* registry) {
   registry->AddInterface<mojom::Launchable>(this);
   return true;
 }
 
 void Browser::Launch(uint32_t what, mojom::LaunchMode how) {
   bool reuse =
@@ skipping 11 matching lines @@
   AddWindow(window);
 }
 
 void Browser::Create(const service_manager::Identity& remote_identity,
                      mojom::LaunchableRequest request) {
   bindings_.AddBinding(this, std::move(request));
 }
 
 }  // namespace browser
 }  // namespace mash