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

components/filesystem/file_system_app.cc

Index: components/filesystem/file_system_app.cc
diff --git a/components/filesystem/file_system_app.cc b/components/filesystem/file_system_app.cc
index 203c4d2a173987da49292354f561237b6d1c0fa4..ac41d092048ea343ab4e17278e5af50013254acc 100644
--- a/components/filesystem/file_system_app.cc
+++ b/components/filesystem/file_system_app.cc
@@ -42,8 +42,8 @@ FileSystemApp::FileSystemApp() : lock_table_(new LockTable) {}
 
 FileSystemApp::~FileSystemApp() {}
 
-void FileSystemApp::OnStart(service_manager::ServiceContext* context) {
-  tracing_.Initialize(context->connector(), context->identity().name());
+void FileSystemApp::OnStart() {
+  tracing_.Initialize(context()->connector(), context()->identity().name());
 }
 
 bool FileSystemApp::OnConnect(const service_manager::ServiceInfo& remote_info,