Provide RSA2048 as per RFC

talk/session/media/channel_unittest.cc

Index: talk/session/media/channel_unittest.cc
diff --git a/talk/session/media/channel_unittest.cc b/talk/session/media/channel_unittest.cc
index d6e259d31e58e0fbc8932a179639269f9d1ac7b5..51e7e8357e215c25d87c28f70303cd5f2bb4fc43 100644
--- a/talk/session/media/channel_unittest.cc
+++ b/talk/session/media/channel_unittest.cc
@@ -180,14 +180,14 @@ class ChannelTest : public testing::Test, public sigslot::has_slots<> {
       // Confirmed to work with KT_RSA and KT_ECDSA.
       transport_controller1_.SetLocalCertificate(rtc::RTCCertificate::Create(
           rtc::scoped_ptr<rtc::SSLIdentity>(
-              rtc::SSLIdentity::Generate("session1", rtc::KT_DEFAULT))
+              rtc::SSLIdentity::Generate("session1", rtc::KeyTypeFull()))
               .Pass()));
     }
     if (flags2 & DTLS) {
       // Confirmed to work with KT_RSA and KT_ECDSA.
       transport_controller2_.SetLocalCertificate(rtc::RTCCertificate::Create(
           rtc::scoped_ptr<rtc::SSLIdentity>(
-              rtc::SSLIdentity::Generate("session2", rtc::KT_DEFAULT))
+              rtc::SSLIdentity::Generate("session2", rtc::KeyTypeFull()))
               .Pass()));
     }