Change DTLS default from 1.0 to 1.2 for webrtc.

webrtc/p2p/base/dtlstransport.h

 /*
  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 17 matching lines @@
 // Everything in this class should be called on the worker thread.
 template<class Base>
 class DtlsTransport : public Base {
  public:
   DtlsTransport(const std::string& name,
                 PortAllocator* allocator,
                 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate)
       : Base(name, allocator),
         certificate_(certificate),
         secure_role_(rtc::SSL_CLIENT),
-        ssl_max_version_(rtc::SSL_PROTOCOL_DTLS_10) {}
+        ssl_max_version_(rtc::SSL_PROTOCOL_DTLS_12) {}
 
   ~DtlsTransport() {
     Base::DestroyAllChannels();
   }
 
   void SetLocalCertificate(
       const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) override {
     certificate_ = certificate;
   }
   bool GetLocalCertificate(
@@ skipping 192 matching lines @@
 
   rtc::scoped_refptr<rtc::RTCCertificate> certificate_;
   rtc::SSLRole secure_role_;
   rtc::SSLProtocolVersion ssl_max_version_;
   rtc::scoped_ptr<rtc::SSLFingerprint> remote_fingerprint_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_DTLSTRANSPORT_H_