Update from https://crrev.com/314320

net/base/net_util_unittest.cc

Index: net/base/net_util_unittest.cc
diff --git a/net/base/net_util_unittest.cc b/net/base/net_util_unittest.cc
index 60fae68d6ebc1dc996318053e9d6da4475b66d0f..e9cd79bced354ff6e47807adf5d93b39a32e1a28 100644
--- a/net/base/net_util_unittest.cc
+++ b/net/base/net_util_unittest.cc
@@ -913,11 +913,11 @@ char* CopyInterfaceName(const char* ifname, int ifname_size, char* output) {
   return output;
 }
 
-char* GetInterfaceName(unsigned int interface_index, char* ifname) {
+char* GetInterfaceName(int interface_index, char* ifname) {
   return CopyInterfaceName(ifname_em1, arraysize(ifname_em1), ifname);
 }
 
-char* GetInterfaceNameVM(unsigned int interface_index, char* ifname) {
+char* GetInterfaceNameVM(int interface_index, char* ifname) {
   return CopyInterfaceName(ifname_vm, arraysize(ifname_vm), ifname);
 }