Add a new GetTlsUniqueChannelBinding method to SSLSocket, and implement nss version.

net/socket/ssl_server_socket_nss.h

Index: net/socket/ssl_server_socket_nss.h
diff --git a/net/socket/ssl_server_socket_nss.h b/net/socket/ssl_server_socket_nss.h
index ba5564958faf355ddf7b2691eb105c5e1e2fb64e..2605abb0c8712f7043251fd2354ceb85c36a6904 100644
--- a/net/socket/ssl_server_socket_nss.h
+++ b/net/socket/ssl_server_socket_nss.h
@@ -30,13 +30,18 @@ class SSLServerSocketNSS : public SSLServerSocket {
                      const SSLConfig& ssl_config);
   virtual ~SSLServerSocketNSS();
 
-  // SSLServerSocket interface.
-  virtual int Handshake(const CompletionCallback& callback) OVERRIDE;
+  // SSLSocket interface.
   virtual int ExportKeyingMaterial(const base::StringPiece& label,
                                    bool has_context,
                                    const base::StringPiece& context,
                                    unsigned char* out,
                                    unsigned int outlen) OVERRIDE;
+  virtual int GetTlsUniqueChannelBinding(unsigned char* out,
+                                         unsigned int *outlen,
+                                         unsigned int outlen_max) OVERRIDE;
+
+  // SSLServerSocket interface.
+  virtual int Handshake(const CompletionCallback& callback) OVERRIDE;

[wtc, 2012/07/30 20:05:08]

Nit: to conform to the style guide's requirement that method
declaration and definition orders match each other, I
suggest you list
  // SSLServerSocket interface.
  virtual int Handshake(const ...
first, and then
  // SSLSocket interface.
  virtual int ExportKeyingMaterial(...
  ...
  virtual int ExportKeyingMaterial(...
  ...

Please make the same change to the other headers.

[Ryan Hamilton, 2012/07/30 21:37:58]

Done.  FWIW, the order of declaration vs definition is not in agreement for
other methods in these classes, but that can wait for another day.

 
   // Socket interface (via StreamSocket).
   virtual int Read(IOBuffer* buf, int buf_len,