Support generation of EC keys using P256 curve and support ECDSA certs.

talk/app/webrtc/webrtcsession_unittest.cc

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 522 matching lines @@
       EXPECT_EQ(std::string(cricket::kMediaProtocolAvpf),
                 video_content->protocol());
     }
   }
 
   // Set the internal fake description factories to do DTLS-SRTP.
   void SetFactoryDtlsSrtp() {
     desc_factory_->set_secure(cricket::SEC_DISABLED);
     std::string identity_name = "WebRTC" +
         rtc::ToString(rtc::CreateRandomId());
-    identity_.reset(rtc::SSLIdentity::Generate(identity_name));
+    // Confirmed to work with KT_RSA and KT_ECDSA.
+    identity_.reset(rtc::SSLIdentity::Generate(identity_name, rtc::KT_DEFAULT));
     tdesc_factory_->set_identity(identity_.get());
     tdesc_factory_->set_secure(cricket::SEC_REQUIRED);
   }
 
   void VerifyFingerprintStatus(const cricket::SessionDescription* sdp,
                                bool expected) {
     const TransportInfo* audio = sdp->GetTransportInfoByName("audio");
     ASSERT_TRUE(audio != NULL);
     ASSERT_EQ(expected, audio->description.identity_fingerprint.get() != NULL);
     const TransportInfo* video = sdp->GetTransportInfoByName("video");
@@ skipping 3389 matching lines @@
     // terminated.  The offer creation may or may not have succeeded, but we
     // must have received a notification which, so the only invalid state
     // is kInit.
     EXPECT_NE(WebRtcSessionCreateSDPObserverForTest::kInit, o->state());
   }
 }
 
 // TODO(bemasc): Add a TestIceStatesBundle with BUNDLE enabled.  That test
 // currently fails because upon disconnection and reconnection OnIceComplete is
 // called more than once without returning to IceGatheringGathering.