Fail WebSocket channel when handshake fails.

net/websockets/websocket_handshake_stream_base.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_HANDSHAKE_STREAM_BASE_H_
 #define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_STREAM_BASE_H_
 
 // This file is included from net/http files.
 // Since net/http can be built without linking net/websockets code,
 // this file must not introduce any link-time dependencies on websockets.
 
+#include <string>
+
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "net/http/http_stream_base.h"
 #include "net/url_request/websocket_handshake_userdata_key.h"
 #include "net/websockets/websocket_stream.h"
 
 namespace net {
 
@@ skipping 35 matching lines @@
   // This has to have an inline implementation so that the net/url_request/
   // tests do not fail on iOS.
   virtual ~WebSocketHandshakeStreamBase() {}
 
   // After the handshake has completed, this method creates a WebSocketStream
   // (of the appropriate type) from the WebSocketHandshakeStreamBase object.
   // The WebSocketHandshakeStreamBase object is unusable after Upgrade() has
   // been called.
   virtual scoped_ptr<WebSocketStream> Upgrade() = 0;
 
+  // Returns a string describing the connection failure information.
+  // Returns an empty string if there is no failure.
+  virtual std::string FailureMessage() const = 0;

[szym, 2013/12/09 18:49:58]

By convention this should be GetFailureMessage()

[yhirano, 2013/12/10 03:30:09]

Done.

+
  protected:
   // As with the destructor, this must be inline.
   WebSocketHandshakeStreamBase() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebSocketHandshakeStreamBase);
 };
 
 }  // namespace net
 
 #endif  // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_STREAM_BASE_H_