Use override consistently instead of virtual.

net/quic/quic_stream_sequencer_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_stream_sequencer.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 25 matching lines @@
   MockStream(QuicSession* session, QuicStreamId id)
       : ReliableQuicStream(id, session) {
   }
 
   MOCK_METHOD0(OnFinRead, void());
   MOCK_METHOD2(ProcessRawData, uint32(const char* data, uint32 data_len));
   MOCK_METHOD2(CloseConnectionWithDetails, void(QuicErrorCode error,
                                                 const string& details));
   MOCK_METHOD1(Reset, void(QuicRstStreamErrorCode error));
   MOCK_METHOD0(OnCanWrite, void());
-  virtual QuicPriority EffectivePriority() const {
+  virtual QuicPriority EffectivePriority() const OVERRIDE {
     return QuicUtils::HighestPriority();
   }
   virtual bool IsFlowControlEnabled() const {
     return true;
   }
 };
 
 namespace {
 
 static const char kPayload[] =
@@ skipping 318 matching lines @@
     LOG(ERROR) << "Sending index " << index << " " << list_[index].second;
     EXPECT_TRUE(OnFrame(list_[index].first, list_[index].second.data()));
 
     list_.erase(list_.begin() + index);
   }
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net