Set Token-Binding HTTP header

net/http/http_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.
 //
 // HttpStream provides an abstraction for a basic http streams, SPDY, and QUIC.
 // The HttpStream subtype is expected to manage the underlying transport
 // appropriately.  For example, a basic http stream will return the transport
 // socket to the pool for reuse.  SPDY streams on the other hand leave the
 // transport socket management to the SpdySession.
 
@@ skipping 132 matching lines @@
   // Get the SSLCertRequestInfo associated with this stream's connection.
   // This should only be called for streams over SSL sockets, otherwise the
   // behavior is undefined.
   virtual void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) = 0;
 
   // Gets the remote endpoint of the socket that the HTTP stream is using, if
   // any. Returns true and fills in |endpoint| if it is available; returns false
   // and does not modify |endpoint| if it is unavailable.
   virtual bool GetRemoteEndpoint(IPEndPoint* endpoint) = 0;
 
+  // Puts the TokenBindingMessage for the SSL connection in |out|. If this
+  // stream's connection is not over an SSL socket, or token binding was not
+  // negotiated for this connection, then |*out| will be set to the empty
+  // string.

[mattm, 2015/10/01 01:53:01]

document return value

[nharper, 2015/10/01 20:25:46]

Done.

+  virtual int GetTokenBindingMessageHeader(std::string* out) = 0;
+
   // In the case of an HTTP error or redirect, flush the response body (usually
   // a simple error or "this page has moved") so that we can re-use the
   // underlying connection. This stream is responsible for deleting itself when
   // draining is complete.
   virtual void Drain(HttpNetworkSession* session) = 0;
 
   // Called when the priority of the parent transaction changes.
   virtual void SetPriority(RequestPriority priority) = 0;
 
   // Queries the UploadDataStream for its progress (bytes sent).
   virtual UploadProgress GetUploadProgress() const = 0;
 
   // Returns a new (not initialized) stream using the same underlying
   // connection and invalidates the old stream - no further methods should be
   // called on the old stream.  The caller should ensure that the response body
   // from the previous request is drained before calling this method.  If the
   // subclass does not support renewing the stream, NULL is returned.
   virtual HttpStream* RenewStreamForAuth() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpStream);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_H_