Add option to enable ECDSA key for Java API.

talk/app/webrtc/java/jni/peerconnection_jni.cc

Index: talk/app/webrtc/java/jni/peerconnection_jni.cc
diff --git a/talk/app/webrtc/java/jni/peerconnection_jni.cc b/talk/app/webrtc/java/jni/peerconnection_jni.cc
index c326ccff6bede1e3e93e5605be72be86a672df7d..e74c9549e64a4062eb9d345ed7fbf3e0afc99697 100644
--- a/talk/app/webrtc/java/jni/peerconnection_jni.cc
+++ b/talk/app/webrtc/java/jni/peerconnection_jni.cc
@@ -1341,6 +1341,17 @@ JOW(jlong, PeerConnectionFactory_nativeCreatePeerConnection)(
   rtc_config.audio_jitter_buffer_fast_accelerate = GetBooleanField(
       jni, j_rtc_config, j_audio_jitter_buffer_fast_accelerate_id);
 
+  // Create ECSDA certificate.
+  scoped_ptr<rtc::SSLIdentity> ssl_identity(
+      rtc::SSLIdentity::Generate(std::string(), rtc::KT_ECDSA));

[jiayl2, 2015/08/26 00:12:23]

Reuse string
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/libjin...

[AlexG, 2015/08/26 00:37:03]

Done.

+  if (ssl_identity.get()) {
+    rtc_config.certificates.push_back(
+        rtc::RTCCertificate::Create(ssl_identity.Pass()));
+    LOG(LS_INFO) << "ECDSA certificate created.";
+  } else {
+    LOG(LS_WARNING) << "Failed to generate SSLIdentity.";
+  }
+
   PCOJava* observer = reinterpret_cast<PCOJava*>(observer_p);
   observer->SetConstraints(new ConstraintsWrapper(jni, j_constraints));
   rtc::scoped_refptr<PeerConnectionInterface> pc(f->CreatePeerConnection(