Update {virtual,override} to follow C++11 style in net.

net/tools/quic/quic_time_wait_list_manager_test.cc

Index: net/tools/quic/quic_time_wait_list_manager_test.cc
diff --git a/net/tools/quic/quic_time_wait_list_manager_test.cc b/net/tools/quic/quic_time_wait_list_manager_test.cc
index 7c451a3a2b8e9fc5d6679a96276f282c9a023f75..1960521eaff635bad61a4bd87769ba798605e255 100644
--- a/net/tools/quic/quic_time_wait_list_manager_test.cc
+++ b/net/tools/quic/quic_time_wait_list_manager_test.cc
@@ -188,7 +188,7 @@ class ValidatePublicResetPacketPredicate
       : connection_id_(connection_id), sequence_number_(number) {
   }
 
-  virtual bool MatchAndExplain(
+  bool MatchAndExplain(
       const std::tr1::tuple<const char*, int> packet_buffer,
       testing::MatchResultListener* /* listener */) const override {
     FramerVisitorCapturingPublicReset visitor;
@@ -206,9 +206,9 @@ class ValidatePublicResetPacketPredicate
         kTestPort == packet.client_address.port();
   }
 
-  virtual void DescribeTo(::std::ostream* os) const override {}
+  void DescribeTo(::std::ostream* os) const override {}
 
-  virtual void DescribeNegationTo(::std::ostream* os) const override {}
+  void DescribeNegationTo(::std::ostream* os) const override {}
 
  private:
   QuicConnectionId connection_id_;