Revert of Enable -Winconsistent-missing-override flag.

webrtc/video/end_to_end_tests.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include <algorithm>
@@ skipping 1747 matching lines @@
           remb_bitrate_bps_(1000000),
           receive_transport_(nullptr),
           event_(false, false),
           poller_thread_(&BitrateStatsPollingThread,
                          this,
                          "BitrateStatsPollingThread"),
           state_(kWaitForFirstRampUp) {}
 
     ~BweObserver() {}
 
-    test::PacketTransport* CreateReceiveTransport() override {
+    test::PacketTransport* CreateReceiveTransport() {
       receive_transport_ = new test::PacketTransport(
           nullptr, this, test::PacketTransport::kReceiver,
           FakeNetworkPipe::Config());
       return receive_transport_;
     }
 
     Call::Config GetSenderCallConfig() override {
       Call::Config config;
       // Set a high start bitrate to reduce the test completion time.
       config.bitrate_config.start_bitrate_bps = remb_bitrate_bps_;
@@ skipping 462 matching lines @@
           ++sent_rtcp_rrtr_;
         }
         EXPECT_NE(packet_type, RTCPUtility::RTCPPacketTypes::kSr);
         EXPECT_NE(packet_type,
                   RTCPUtility::RTCPPacketTypes::kXrDlrrReportBlockItem);
         packet_type = parser.Iterate();
       }
       return SEND_PACKET;
     }
     // Send stream should send SR packets (and DLRR packets if enabled).
-    Action OnSendRtcp(const uint8_t* packet, size_t length) override {
+    virtual Action OnSendRtcp(const uint8_t* packet, size_t length) {
       rtc::CritScope lock(&crit_);
       RTCPUtility::RTCPParserV2 parser(packet, length, true);
       EXPECT_TRUE(parser.IsValid());
 
       RTCPUtility::RTCPPacketTypes packet_type = parser.Begin();
       while (packet_type != RTCPUtility::RTCPPacketTypes::kInvalid) {
         if (packet_type == RTCPUtility::RTCPPacketTypes::kSr) {
           ++sent_rtcp_sr_;
         } else if (packet_type ==
                    RTCPUtility::RTCPPacketTypes::kXrDlrrReportBlockItem) {
@@ skipping 1239 matching lines @@
    private:
     bool video_observed_;
     bool audio_observed_;
     SequenceNumberUnwrapper unwrapper_;
     std::set<int64_t> received_packet_ids_;
   } test;
 
   RunBaseTest(&test);
 }
 }  // namespace webrtc