DoPayloadRead should ignore PR_END_OF_FILE_ERROR from PR_Read, which...

net/socket/ssl_client_socket_nss.cc

Index: net/socket/ssl_client_socket_nss.cc
===================================================================
--- net/socket/ssl_client_socket_nss.cc	(revision 29040)
+++ net/socket/ssl_client_socket_nss.cc	(working copy)
@@ -956,8 +956,19 @@
     LeaveFunction("");
     return ERR_IO_PENDING;
   }
+  int net_error;
+  if (prerr == PR_END_OF_FILE_ERROR) {
+    // TODO(wtc): Unless we have received the close_notify alert, we need to
+    // return an error code indicating that the SSL connection ended
+    // uncleanly, a potential truncation attack.  See http://crbug.com/18586.
+    LOG(WARNING) << "SSL connection closed without close_notify";
+    LogData(user_read_buf_->data(), 0);
+    net_error = 0;
+  } else {
+    net_error = NetErrorFromNSPRError(prerr);
+  }
   LeaveFunction("");
-  return NetErrorFromNSPRError(prerr);
+  return net_error;
 }
 
 int SSLClientSocketNSS::DoPayloadWrite() {