Update from chromium https://crrev.com/301725/

net/socket/unix_domain_listen_socket_posix_unittest.cc

Index: net/socket/unix_domain_listen_socket_posix_unittest.cc
diff --git a/net/socket/unix_domain_listen_socket_posix_unittest.cc b/net/socket/unix_domain_listen_socket_posix_unittest.cc
index bfa920015a469277505c465be8b20902e0ee98f8..aaf362310c3ae31ebdf9f02f5f13d1d0f001841b 100644
--- a/net/socket/unix_domain_listen_socket_posix_unittest.cc
+++ b/net/socket/unix_domain_listen_socket_posix_unittest.cc
@@ -167,12 +167,12 @@ class UnixDomainListenSocketTestHelper : public testing::Test {
     return temp_dir_.path().Append(socket_name);
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     event_manager_ = new EventManager();
     socket_delegate_.reset(new TestListenSocketDelegate(event_manager_));
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     socket_.reset();
     socket_delegate_.reset();
     event_manager_ = NULL;