Fail WebSocket channel when handshake fails.

net/websockets/websocket_event_interface.h

 // 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.
 
 #ifndef NET_WEBSOCKETS_WEBSOCKET_EVENT_INTERFACE_H_
 #define NET_WEBSOCKETS_WEBSOCKET_EVENT_INTERFACE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 53 matching lines @@
   // attackers attempting to use WebSockets to probe networks.
   //
   // The channel should not be used again after OnDropChannel() has been
   // called.
   //
   // This method returns a ChannelState for consistency, but all implementations
   // must delete the Channel and return CHANNEL_DELETED.
   virtual ChannelState OnDropChannel(uint16 code, const std::string& reason)
       WARN_UNUSED_RESULT = 0;
 
+  // Called when the browser fails the channel, as specified in the spec.
+  //
+  // The channel should not be used again after OnFailChannel() has been
+  // called.
+  //
+  // This method returns a ChannelState for consistency, but all implementations
+  // must delete the Channel and return CHANNEL_DELETED.
+  virtual ChannelState OnFailChannel(const std::string& message)
+      WARN_UNUSED_RESULT = 0;
+
  protected:
   WebSocketEventInterface() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebSocketEventInterface);
 };
 
 }  // namespace net
 
 #endif  // NET_WEBSOCKETS_WEBSOCKET_EVENT_INTERFACE_H_