Update API for Objective-C RTCIceServer

BUG=

Review URL: https://codereview.webrtc.org/1499653003

Cr-Commit-Position: refs/heads/master@{#11000}
diff --git a/webrtc/api/OWNERS b/webrtc/api/OWNERS
new file mode 100644
index 0000000..cd06158
--- /dev/null
+++ b/webrtc/api/OWNERS
@@ -0,0 +1 @@
+tkchin@webrtc.org