Add option to enable ECDSA key for Java API.

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

 /*
  * libjingle
  * Copyright 2013 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 1323 matching lines @@
   rtc_config.rtcp_mux_policy =
       JavaRtcpMuxPolicyToNativeType(jni, j_rtcp_mux_policy);
   rtc_config.tcp_candidate_policy =
       JavaTcpCandidatePolicyToNativeType(jni, j_tcp_candidate_policy);
   JavaIceServersToJsepIceServers(jni, j_ice_servers, &rtc_config.servers);
   rtc_config.audio_jitter_buffer_max_packets =
       GetIntField(jni, j_rtc_config, j_audio_jitter_buffer_max_packets_id);
   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(
       rtc_config, observer->constraints(), NULL, NULL, observer));
   return (jlong)pc.release();
 }
 
 static rtc::scoped_refptr<PeerConnectionInterface> ExtractNativePC(
     JNIEnv* jni, jobject j_pc) {
   jfieldID native_pc_id = GetFieldID(jni,
@@ skipping 323 matching lines @@
 }
 
 JOW(void, VideoTrack_nativeRemoveRenderer)(
     JNIEnv* jni, jclass,
     jlong j_video_track_pointer, jlong j_renderer_pointer) {
   reinterpret_cast<VideoTrackInterface*>(j_video_track_pointer)->RemoveRenderer(
       reinterpret_cast<VideoRendererInterface*>(j_renderer_pointer));
 }
 
 }  // namespace webrtc_jni