Set IOS Wifi interface type based on the interface name.

webrtc/base/network_unittest.cc

Index: webrtc/base/network_unittest.cc
diff --git a/webrtc/base/network_unittest.cc b/webrtc/base/network_unittest.cc
index 9572c697467736fac007601a9f027befc3f36bc9..2ddc1b03c510898169c9a993ee41b14b1d55f46b 100644
--- a/webrtc/base/network_unittest.cc
+++ b/webrtc/base/network_unittest.cc
@@ -867,6 +867,12 @@ TEST_F(NetworkTest, TestGetAdapterTypeFromNameMatching) {
   ClearNetworks(manager);
   ReleaseIfAddrs(addr_list);
 
+  strcpy(if_name, "en0");
+  addr_list = InstallIpv6Network(if_name, ipv6_address1, ipv6_mask, manager);
+  EXPECT_EQ(ADAPTER_TYPE_WIFI, GetAdapterType(manager));
+  ClearNetworks(manager);
+  ReleaseIfAddrs(addr_list);
+
 #elif defined(WEBRTC_ANDROID)
   char if_name[20] = "rmnet0";
   ifaddrs* addr_list =