Fail WebSocket channel when handshake fails.

net/websockets/websocket_stream.h

 // 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.
 
 #ifndef NET_WEBSOCKETS_WEBSOCKET_STREAM_H_
 #define NET_WEBSOCKETS_WEBSOCKET_STREAM_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 39 matching lines @@
  public:
   // A concrete object derived from ConnectDelegate is supplied by the caller to
   // CreateAndConnectStream() to receive the result of the connection.
   class NET_EXPORT_PRIVATE ConnectDelegate {
    public:
     virtual ~ConnectDelegate();
     // Called on successful connection. The parameter is an object derived from
     // WebSocketStream.
     virtual void OnSuccess(scoped_ptr<WebSocketStream> stream) = 0;
 
-    // Called on failure to connect. The parameter is either one of the values
-    // defined in net::WebSocketError, or an error defined by some WebSocket
-    // extension protocol that we implement.
-    virtual void OnFailure(unsigned short websocket_error) = 0;
+    // Called on failure to connect.
+    // |message| is the detailed information of the failure.

[Adam Rice, 2013/12/09 07:41:12]

You could say "|message| contains detailed information about the failure" or
just "|message| contains details of the failure".

[yhirano, 2013/12/09 07:48:09]

Done.

+    virtual void OnFailure(const std::string& message) = 0;
   };
 
   // Create and connect a WebSocketStream of an appropriate type. The actual
   // concrete type returned depends on whether multiplexing or SPDY are being
   // used to communicate with the remote server. If the handshake completed
   // successfully, then connect_delegate->OnSuccess() is called with a
   // WebSocketStream instance. If it failed, then connect_delegate->OnFailure()
   // is called with a WebSocket result code corresponding to the error. Deleting
   // the returned WebSocketStreamRequest object will cancel the connection, in
   // which case the |connect_delegate| object that the caller passed will be
@@ skipping 93 matching lines @@
  protected:
   WebSocketStream();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebSocketStream);
 };
 
 }  // namespace net
 
 #endif  // NET_WEBSOCKETS_WEBSOCKET_STREAM_H_