Set IOS Wifi interface type based on the interface name.

webrtc/base/network.cc

Index: webrtc/base/network.cc
diff --git a/webrtc/base/network.cc b/webrtc/base/network.cc
index 5031e967a5b4c0fc7b128369732968ea5c2bae0d..f25798423f2f67af87ba6b59a1455fb6e51c1703 100644
--- a/webrtc/base/network.cc
+++ b/webrtc/base/network.cc
@@ -805,6 +805,12 @@ AdapterType BasicNetworkManager::GetAdapterTypeFromName(
   if (strncmp(network_name, "pdp_ip", 6) == 0) {
     return ADAPTER_TYPE_CELLULAR;
   }
+  if (strncmp(network_name, "en", 2) == 0) {
+    // This may not be most accurate because sometimes Ethernet interface
+    // name also starts with "en" but it is better than showing it as
+    // "unknown" type.

[pthatcher1, 2016/05/26 21:44:14]

// TODO(honghaiz): Write a proper iOS NetworkManager

?

[honghaiz3, 2016/05/27 01:03:58]

Done.

+    return ADAPTER_TYPE_WIFI;
+  }
 #elif defined(WEBRTC_ANDROID)
   if (strncmp(network_name, "rmnet", 5) == 0 ||
       strncmp(network_name, "v4-rmnet", 8) == 0) {