Fix PEM error checking

runtime/bin/secure_socket.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_SECURE_SOCKET_H_
 #define BIN_SECURE_SOCKET_H_
 
 #ifdef DART_IO_SECURE_SOCKET_DISABLED
 #error "secure_socket.h can only be included on builds with SSL enabled"
 #endif
@@ skipping 98 matching lines @@
   int buffer_size_;
   int encrypted_buffer_size_;
   Dart_PersistentHandle string_start_;
   Dart_PersistentHandle string_length_;
   Dart_PersistentHandle dart_buffer_objects_[kNumBuffers];
   Dart_PersistentHandle handshake_complete_;
   Dart_PersistentHandle bad_certificate_callback_;
   bool in_handshake_;
   bool is_server_;
   char* hostname_;
-  X509_VERIFY_PARAM* certificate_checking_parameters_;
 
   static bool isBufferEncrypted(int i) {
     return static_cast<BufferIndex>(i) >= kFirstEncrypted;
   }
   void InitializeBuffers(Dart_Handle dart_this);
   void InitializePlatformData();
 
   DISALLOW_COPY_AND_ASSIGN(SSLFilter);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_SECURE_SOCKET_H_