Rename RTCPeerConnection.updateIce to setConfiguration and make it work.

content/renderer/media/mock_peer_connection_impl.cc

Index: content/renderer/media/mock_peer_connection_impl.cc
diff --git a/content/renderer/media/mock_peer_connection_impl.cc b/content/renderer/media/mock_peer_connection_impl.cc
index 726e4273f59d73a1b075aa4de76583c440cf039e..2ec575071c9a0fcb6b71ea73ffd1b55590ed02ec 100644
--- a/content/renderer/media/mock_peer_connection_impl.cc
+++ b/content/renderer/media/mock_peer_connection_impl.cc
@@ -267,8 +267,13 @@ void MockPeerConnectionImpl::SetRemoteDescriptionWorker(
 }
 
 bool MockPeerConnectionImpl::SetConfiguration(
-    const RTCConfiguration& configuration) {
-  return true;
+    const RTCConfiguration& configuration,
+    webrtc::RTCError* error) {
+  if (setconfiguration_error_type_ == webrtc::RTCErrorType::NONE) {
+    return true;
+  }
+  error->set_type(setconfiguration_error_type_);
+  return false;
 }
 
 bool MockPeerConnectionImpl::AddIceCandidate(