replace OVERRIDE and FINAL with override and final in net/

net/quic/quic_connection_helper.cc

Index: net/quic/quic_connection_helper.cc
diff --git a/net/quic/quic_connection_helper.cc b/net/quic/quic_connection_helper.cc
index fefd6faaeed32b020395e1ba7c35b232a97168ca..83c16489506a6451924af54f755834774e3fd865 100644
--- a/net/quic/quic_connection_helper.cc
+++ b/net/quic/quic_connection_helper.cc
@@ -29,7 +29,7 @@ class QuicChromeAlarm : public QuicAlarm {
         weak_factory_(this) {}
 
  protected:
-  virtual void SetImpl() OVERRIDE {
+  virtual void SetImpl() override {
     DCHECK(deadline().IsInitialized());
     if (task_deadline_.IsInitialized()) {
       if (task_deadline_ <= deadline()) {
@@ -54,7 +54,7 @@ class QuicChromeAlarm : public QuicAlarm {
     task_deadline_ = deadline();
   }
 
-  virtual void CancelImpl() OVERRIDE {
+  virtual void CancelImpl() override {
     DCHECK(!deadline().IsInitialized());
     // Since tasks can not be un-posted, OnAlarm will be invoked which
     // will notice that deadline is not Initialized and will do nothing.