Make sure WebRTC works without libvpx VP9 support.

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 315 matching lines @@
   int frame_counter_;
 };
 
 TEST_F(EndToEndTest, SendsAndReceivesVP8Rotation90) {
   CodecObserver test(5, kVideoRotation_90, "VP8",
                      VideoEncoder::Create(VideoEncoder::kVp8),
                      VP8Decoder::Create());
   RunBaseTest(&test);
 }
 
+#if !defined(RTC_DISABLE_VP9)
 TEST_F(EndToEndTest, SendsAndReceivesVP9) {
   CodecObserver test(500, kVideoRotation_0, "VP9",
                      VideoEncoder::Create(VideoEncoder::kVp9),
                      VP9Decoder::Create());
   RunBaseTest(&test);
 }
 
 TEST_F(EndToEndTest, SendsAndReceivesVP9VideoRotation90) {
   CodecObserver test(5, kVideoRotation_90, "VP9",
                      VideoEncoder::Create(VideoEncoder::kVp9),
                      VP9Decoder::Create());
   RunBaseTest(&test);
 }
+#endif  // !defined(RTC_DISABLE_VP9)
 
 #if defined(WEBRTC_END_TO_END_H264_TESTS)
 
 TEST_F(EndToEndTest, SendsAndReceivesH264) {
   CodecObserver test(500, kVideoRotation_0, "H264",
                      VideoEncoder::Create(VideoEncoder::kH264),
                      H264Decoder::Create());
   RunBaseTest(&test);
 }
 
@@ skipping 3144 matching lines @@
    private:
     bool video_observed_;
     bool audio_observed_;
     SequenceNumberUnwrapper unwrapper_;
     std::set<int64_t> received_packet_ids_;
   } test;
 
   RunBaseTest(&test);
 }
 }  // namespace webrtc