Fix chromium-style warnings.

webrtc/modules/rtp_rtcp/test/testAPI/test_api.h

 /*
  *  Copyright (c) 2012 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_TEST_TESTAPI_TEST_API_H_
 #define WEBRTC_MODULES_RTP_RTCP_TEST_TESTAPI_TEST_API_H_
 
 #include "webrtc/common_types.h"
 #include "webrtc/modules/rtp_rtcp/include/receive_statistics.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_header_parser.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_payload_registry.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_receiver.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "webrtc/modules/rtp_rtcp/source/rtp_rtcp_defines_nullimpl.h"
 #include "webrtc/test/gtest.h"
 #include "webrtc/transport.h"
 
 namespace webrtc {
 
 // This class sends all its packet straight to the provided RtpRtcp module.
 // with optional packet loss.
 class LoopBackTransport : public Transport {
  public:
   LoopBackTransport()
@@ skipping 33 matching lines @@
   webrtc::WebRtcRTPHeader rtp_header() const { return rtp_header_; }
 
  private:
   uint8_t payload_data_[1500];
   size_t payload_size_;
   webrtc::WebRtcRTPHeader rtp_header_;
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_TEST_TESTAPI_TEST_API_H_