Service Worker: Add Clients.get(id)

content/renderer/service_worker/service_worker_context_client.cc

Index: content/renderer/service_worker/service_worker_context_client.cc
diff --git a/content/renderer/service_worker/service_worker_context_client.cc b/content/renderer/service_worker/service_worker_context_client.cc
index dc8f4d2fa205508fddd2a205226affcc63e42576..b678899e665b1e97fcaafe4f93a287d183f63281 100644
--- a/content/renderer/service_worker/service_worker_context_client.cc
+++ b/content/renderer/service_worker/service_worker_context_client.cc
@@ -261,6 +261,7 @@ void ServiceWorkerContextClient::OnMessageReceived(
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_MessageToWorker, OnPostMessage)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_CrossOriginMessageToWorker,
                         OnCrossOriginMessageToWorker)
+    IPC_MESSAGE_HANDLER(ServiceWorkerMsg_DidGetClient, OnDidGetClient)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_DidGetClients, OnDidGetClients)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_OpenWindowResponse,
                         OnOpenWindowResponse)
@@ -293,6 +294,15 @@ blink::WebURL ServiceWorkerContextClient::scope() const {
   return service_worker_scope_;
 }
 
+void ServiceWorkerContextClient::getClient(
+    const blink::WebString& id,
+    blink::WebServiceWorkerClientCallbacks* callbacks) {
+  DCHECK(callbacks);
+  int request_id = context_->client_callbacks.Add(callbacks);
+  Send(new ServiceWorkerHostMsg_GetClient(
+      GetRoutingID(), request_id, base::UTF16ToUTF8(base::StringPiece16(id))));
+}
+
 void ServiceWorkerContextClient::getClients(
     const blink::WebServiceWorkerClientQueryOptions& weboptions,
     blink::WebServiceWorkerClientsCallbacks* callbacks) {
@@ -823,6 +833,21 @@ void ServiceWorkerContextClient::OnCrossOriginMessageToWorker(
   proxy_->dispatchCrossOriginMessageEvent(web_client, message, ports);
 }
 
+void ServiceWorkerContextClient::OnDidGetClient(
+    int request_id,
+    const ServiceWorkerClientInfo& client) {
+  TRACE_EVENT0("ServiceWorker", "ServiceWorkerContextClient::OnDidGetClient");
+  blink::WebServiceWorkerClientCallbacks* callbacks =
+      context_->client_callbacks.Lookup(request_id);
+  if (!callbacks) {
+    NOTREACHED() << "Got stray response: " << request_id;
+    return;
+  }
+  callbacks->onSuccess(adoptWebPtr(new blink::WebServiceWorkerClientInfo(
+      ToWebServiceWorkerClientInfo(client))));
+  context_->client_callbacks.Remove(request_id);
+}
+
 void ServiceWorkerContextClient::OnDidGetClients(
     int request_id, const std::vector<ServiceWorkerClientInfo>& clients) {
   TRACE_EVENT0("ServiceWorker",