Disable flaky test while working on improvement.

webrtc/media/engine/webrtcvideoengine2_unittest.cc

 /*
  *  Copyright (c) 2004 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.
  */
 
@@ skipping 888 matching lines @@
   StreamParams sp = cricket::StreamParams::CreateLegacy(kSsrc);
   sp.id = "FakeStreamParamsId";
   EXPECT_TRUE(channel->AddRecvStream(sp));
   EXPECT_EQ(1u, decoder_factory.decoders().size());
 
   std::vector<cricket::VideoDecoderParams> params = decoder_factory.params();
   ASSERT_EQ(1u, params.size());
   EXPECT_EQ(sp.id, params[0].receive_stream_id);
 }
 
-TEST_F(WebRtcVideoEngine2Test, RecreatesEncoderOnContentTypeChange) {
+TEST_F(WebRtcVideoEngine2Test, DISABLED_RecreatesEncoderOnContentTypeChange) {
   cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
   encoder_factory.AddSupportedVideoCodecType("VP8");
   std::unique_ptr<FakeCall> fake_call(
       new FakeCall(webrtc::Call::Config(&event_log_)));
   std::unique_ptr<VideoMediaChannel> channel(
       SetUpForExternalEncoderFactory(&encoder_factory));
   ASSERT_TRUE(
       channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
   cricket::VideoCodec codec = GetEngineCodec("VP8");
   cricket::VideoSendParameters parameters;
@@ skipping 3446 matching lines @@
 }
 
 TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsForSimulcastScreenshare) {
   webrtc::test::ScopedFieldTrials override_field_trials_(
       "WebRTC-SimulcastScreenshare/Enabled/");
   VerifySimulcastSettings(cricket::VideoCodec("VP8"), 1280, 720, 3, 2, true,
                           true);
 }
 
 }  // namespace cricket