Revert of Fix chromium-style warnings.

webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h

Index: webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h b/webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h
deleted file mode 100644
index 6df346993a54e83749568340fccb2d53a94dc689..0000000000000000000000000000000000000000
--- a/webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- *  Copyright (c) 2016 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.
- */
-
-#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_RTCP_DEFINES_NULLIMPL_H_
-#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_RTCP_DEFINES_NULLIMPL_H_
-
-#include <stddef.h>
-
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
-
-namespace webrtc {
-
-// Null object version of RtpFeedback.
-class NullRtpFeedback : public RtpFeedback {
- public:
-  ~NullRtpFeedback() override {}
-
-  int32_t OnInitializeDecoder(int8_t payload_type,
-                              const char payloadName[RTP_PAYLOAD_NAME_SIZE],
-                              int frequency,
-                              size_t channels,
-                              uint32_t rate) override;
-
-  void OnIncomingSSRCChanged(uint32_t ssrc) override {}
-  void OnIncomingCSRCChanged(uint32_t csrc, bool added) override {}
-};
-
-// Null object version of RtpData.
-class NullRtpData : public RtpData {
- public:
-  ~NullRtpData() override {}
-
-  int32_t OnReceivedPayloadData(const uint8_t* payload_data,
-                                size_t payload_size,
-                                const WebRtcRTPHeader* rtp_header) override;
-
-  bool OnRecoveredPacket(const uint8_t* packet, size_t packet_length) override;
-};
-
-}  // namespace webrtc
-#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_RTCP_DEFINES_NULLIMPL_H_