Wire provider_id into scriptable API provider to start listening events

content/browser/service_worker/service_worker_provider_host.cc

 // Copyright 2013 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 "content/browser/service_worker/service_worker_provider_host.h"
 
+#include "base/stl_util.h"
 #include "content/browser/service_worker/service_worker_utils.h"
 #include "content/browser/service_worker/service_worker_version.h"
 
 namespace content {
 
 ServiceWorkerProviderHost::ServiceWorkerProviderHost(
     int process_id, int provider_id)
     : process_id_(process_id), provider_id_(provider_id) {
 }
 
 ServiceWorkerProviderHost::~ServiceWorkerProviderHost() {
 }
 
+void ServiceWorkerProviderHost::AddScriptClient(int thread_id) {
+  DCHECK(!ContainsKey(script_client_thread_ids_, thread_id));
+  script_client_thread_ids_.insert(thread_id);
+}
+
+void ServiceWorkerProviderHost::RemoveScriptClient(int thread_id) {
+  DCHECK(ContainsKey(script_client_thread_ids_, thread_id));
+  script_client_thread_ids_.erase(thread_id);
+}
+
 bool ServiceWorkerProviderHost::ShouldHandleRequest(
     ResourceType::Type resource_type) const {
   if (ServiceWorkerUtils::IsMainResourceType(resource_type))
     return true;
 
   if (associated_version())
     return true;
 
   return false;
 }
 
 }  // namespace content