Make SSLClientSocketNSS full-duplex

net/socket/ssl_client_socket_nss.h

Index: net/socket/ssl_client_socket_nss.h
diff --git a/net/socket/ssl_client_socket_nss.h b/net/socket/ssl_client_socket_nss.h
index 8cbdff672ec0e742f9662df51d5038de15b4950f..1535e04f5689150a9f77762e6b8584ccd7e8ca86 100644
--- a/net/socket/ssl_client_socket_nss.h
+++ b/net/socket/ssl_client_socket_nss.h
@@ -57,17 +57,25 @@ class SSLClientSocketNSS : public SSLClientSocket {
  private:
   void InvalidateSessionIfBadCertificate();
   X509Certificate* UpdateServerCert();
-  void DoCallback(int result);
+  void DoReadCallback(int result);
+  void DoWriteCallback(int result);
   void DoConnectCallback(int result);
-  void OnIOComplete(int result);
+  void OnHandshakeIOComplete(int result);
+  void OnSendComplete(int result);
+  void OnRecvComplete(int result);
 
-  int DoLoop(int last_io_result);
-  int DoHandshakeRead();
+  int DoHandshakeLoop(int last_io_result);
+  int DoReadLoop(int result);
+  int DoWriteLoop(int result);
+
+  int DoHandshake();
   int DoVerifyCert(int result);
   int DoVerifyCertComplete(int result);
   int DoPayloadRead();
   int DoPayloadWrite();
   int Init();
+
+  bool DoTransportIO();
   int BufferSend(void);
   int BufferRecv(void);
   void BufferSendComplete(int result);
@@ -87,17 +95,22 @@ class SSLClientSocketNSS : public SSLClientSocket {
   bool transport_recv_busy_;
   scoped_refptr<IOBuffer> recv_buffer_;
 
-  CompletionCallbackImpl<SSLClientSocketNSS> io_callback_;
+  CompletionCallbackImpl<SSLClientSocketNSS> handshake_io_callback_;
   scoped_ptr<ClientSocket> transport_;
   std::string hostname_;
   SSLConfig ssl_config_;
 
   CompletionCallback* user_connect_callback_;
-  CompletionCallback* user_callback_;
+  CompletionCallback* user_read_callback_;
+  CompletionCallback* user_write_callback_;
+
+  // Used by Read function.
+  scoped_refptr<IOBuffer> user_read_buf_;
+  int user_read_buf_len_;
 
-  // Used by both Read and Write functions.
-  scoped_refptr<IOBuffer> user_buf_;
-  int user_buf_len_;
+  // Used by Write function.
+  scoped_refptr<IOBuffer> user_write_buf_;
+  int user_write_buf_len_;
 
   // Set when handshake finishes.
   scoped_refptr<X509Certificate> server_cert_;
@@ -109,13 +122,11 @@ class SSLClientSocketNSS : public SSLClientSocket {
 
   enum State {
     STATE_NONE,
-    STATE_HANDSHAKE_READ,
+    STATE_HANDSHAKE,
     STATE_VERIFY_CERT,
     STATE_VERIFY_CERT_COMPLETE,
-    STATE_PAYLOAD_WRITE,
-    STATE_PAYLOAD_READ,
   };
-  State next_state_;
+  State next_handshake_state_;
 
   // The NSS SSL state machine
   PRFileDesc* nss_fd_;