Revert of Gather the ServiceWorker client information in the browser process.

content/child/service_worker/service_worker_dispatcher.cc

Index: content/child/service_worker/service_worker_dispatcher.cc
diff --git a/content/child/service_worker/service_worker_dispatcher.cc b/content/child/service_worker/service_worker_dispatcher.cc
index 531fd4b0f8249d02a442f2e10425892727c8232d..fce8783f92a32de78ef49bb677e70adc834b9bd4 100644
--- a/content/child/service_worker/service_worker_dispatcher.cc
+++ b/content/child/service_worker/service_worker_dispatcher.cc
@@ -84,6 +84,8 @@
                         OnSetControllerServiceWorker)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_MessageToDocument,
                         OnPostMessage)
+    IPC_MESSAGE_HANDLER(ServiceWorkerMsg_GetClientInfo,
+                        OnGetClientInfo)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   DCHECK(handled) << "Unhandled message:" << msg.type();
@@ -661,6 +663,30 @@
   found->second->dispatchMessageEvent(message, ports);
 }
 
+void ServiceWorkerDispatcher::OnGetClientInfo(int thread_id,
+                                              int embedded_worker_id,
+                                              int request_id,
+                                              int provider_id) {
+  blink::WebServiceWorkerClientInfo info;
+  ProviderClientMap::iterator found = provider_clients_.find(provider_id);
+  // TODO(ksakamoto): Could we track these values in the browser side? Except
+  // for |isFocused|, it would be pretty easy.
+  if (found != provider_clients_.end() && found->second->getClientInfo(&info)) {
+    ServiceWorkerClientInfo result;
+    result.client_id = info.clientID;
+    result.page_visibility_state = info.pageVisibilityState;
+    result.is_focused = info.isFocused;
+    result.url = info.url;
+    result.frame_type = static_cast<RequestContextFrameType>(info.frameType);
+
+    thread_safe_sender_->Send(new ServiceWorkerHostMsg_GetClientInfoSuccess(
+        embedded_worker_id, request_id, result));
+  } else {
+    thread_safe_sender_->Send(new ServiceWorkerHostMsg_GetClientInfoError(
+        embedded_worker_id, request_id));
+  }
+}
+
 void ServiceWorkerDispatcher::AddServiceWorker(
     int handle_id, WebServiceWorkerImpl* worker) {
   DCHECK(!ContainsKey(service_workers_, handle_id));