Websocket should fire 'error' event if no server available

content/browser/renderer_host/socket_stream_dispatcher_host.cc

 // Copyright (c) 2012 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/renderer_host/socket_stream_dispatcher_host.h"
 
 #include "base/logging.h"
 #include "content/browser/renderer_host/socket_stream_host.h"
 #include "content/browser/ssl/ssl_manager.h"
 #include "content/common/resource_messages.h"
@@ skipping 83 matching lines @@
 void SocketStreamDispatcherHost::OnClose(net::SocketStream* socket) {
   int socket_id = SocketStreamHost::SocketIdFromSocketStream(socket);
   DVLOG(1) << "SocketStreamDispatcherHost::OnClosed socket_id=" << socket_id;
   if (socket_id == kNoSocketId) {
     LOG(ERROR) << "NoSocketId in OnClose";
     return;
   }
   DeleteSocketStreamHost(socket_id);
 }
 
+void SocketStreamDispatcherHost::OnError(const net::SocketStream* socket,
+                                         int error) {
+  int socket_id = SocketStreamHost::SocketIdFromSocketStream(socket);
+  DVLOG(1) << "SocketStreamDispatcherHost::OnError socket_id=" << socket_id;
+  if (socket_id == content::kNoSocketId) {
+    LOG(ERROR) << "NoSocketId in OnError";
+    return;
+  }
+  // SocketStream::Delegate::OnError() events are handled as WebSocket error
+  // event when user agent was required to fail WebSocket connection or the
+  // WebSocket connection is closed with prejudice.
+  if (!Send(new SocketStreamMsg_Failed(socket_id, error))) {
+    LOG(ERROR) << "SocketStreamMsg_Failed failed.";
+    DeleteSocketStreamHost(socket_id);
+  }
+}
+
 void SocketStreamDispatcherHost::OnSSLCertificateError(
     net::SocketStream* socket, const net::SSLInfo& ssl_info, bool fatal) {
   int socket_id = SocketStreamHost::SocketIdFromSocketStream(socket);
   DVLOG(1) << "SocketStreamDispatcherHost::OnSSLCertificateError socket_id="
            << socket_id;
   if (socket_id == kNoSocketId) {
     LOG(ERROR) << "NoSocketId in OnSSLCertificateError";
     return;
   }
   SocketStreamHost* socket_stream_host = hosts_.Lookup(socket_id);
@@ skipping 109 matching lines @@
     LOG(ERROR) << "SocketStreamMsg_Closed failed.";
   }
 }
 
 net::URLRequestContext* SocketStreamDispatcherHost::GetURLRequestContext() {
   return url_request_context_selector_->GetRequestContext(
       ResourceType::SUB_RESOURCE);
 }
 
 }  // namespace content