Service Worker: Add Clients.get(id)

content/browser/service_worker/service_worker_version.cc

Index: content/browser/service_worker/service_worker_version.cc
diff --git a/content/browser/service_worker/service_worker_version.cc b/content/browser/service_worker/service_worker_version.cc
index cf46f7dd616bee44247d73721e72d08839f63af3..694d66c391d55ed3b87d44f8d6ae0a4ef58389d8 100644
--- a/content/browser/service_worker/service_worker_version.cc
+++ b/content/browser/service_worker/service_worker_version.cc
@@ -955,6 +955,7 @@ void ServiceWorkerVersion::OnReportConsoleMessage(int source_identifier,
 bool ServiceWorkerVersion::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ServiceWorkerVersion, message)
+    IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_GetClient, OnGetClient)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_GetClients,
                         OnGetClients)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_ActivateEventFinished,
@@ -1025,6 +1026,31 @@ void ServiceWorkerVersion::DispatchActivateEventAfterStartWorker(
   }
 }
 
+void ServiceWorkerVersion::OnGetClient(int request_id, const std::string& id) {
+  TRACE_EVENT_ASYNC_BEGIN1("ServiceWorker", "ServiceWorkerVersion::OnGetClient",
+                           request_id, "id", id);
+  service_worker_client_utils::GetClient(
+      weak_factory_.GetWeakPtr(), id, context_,
+      base::Bind(&ServiceWorkerVersion::OnGetClientFinished,
+                 weak_factory_.GetWeakPtr(), request_id));
+}
+
+void ServiceWorkerVersion::OnGetClientFinished(
+    int request_id,
+    const ServiceWorkerClientInfo& client) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  TRACE_EVENT_ASYNC_END1("ServiceWorker", "ServiceWorkerVersion::OnGetClient",
+                         request_id, "The retrieved client", &client);
+
+  // When Clients.matchAll() is called on the script evaluation phase, the
+  // running status can be STARTING here.
+  if (running_status() != STARTING && running_status() != RUNNING)
+    return;
+
+  embedded_worker_->SendMessage(
+      ServiceWorkerMsg_DidGetClient(request_id, client));
+}
+
 void ServiceWorkerVersion::OnGetClients(
     int request_id,
     const ServiceWorkerClientQueryOptions& options) {