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

webrtc/base/sslidentity_unittest.cc

Index: webrtc/base/sslidentity_unittest.cc
diff --git a/webrtc/base/sslidentity_unittest.cc b/webrtc/base/sslidentity_unittest.cc
index fd754114288c1cd7a9b97bc429973df42a5ec474..3b92feaa50fcc93cfa508c3b12a52e1fff8bacb3 100644
--- a/webrtc/base/sslidentity_unittest.cc
+++ b/webrtc/base/sslidentity_unittest.cc
@@ -46,8 +46,8 @@ class SSLIdentityTest : public testing::Test {
   }
 
   virtual void SetUp() {
-    identity1_.reset(SSLIdentity::Generate("test1"));
-    identity2_.reset(SSLIdentity::Generate("test2"));
+    identity1_.reset(SSLIdentity::Generate("test1", rtc::KT_RSA));
+    identity2_.reset(SSLIdentity::Generate("test2", rtc::KT_RSA));
 
     ASSERT_TRUE(identity1_);
     ASSERT_TRUE(identity2_);