Vp9: Enable denoiser by default.

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 1953 matching lines @@
   cricket::FakeVideoCapturer capturer;
   EXPECT_EQ(cricket::CS_RUNNING,
             capturer.Start(capturer.GetSupportedFormats()->front()));
   EXPECT_TRUE(channel_->SetVideoSend(last_ssrc_, true, nullptr, &capturer));
   channel_->SetSend(true);
 
   EXPECT_TRUE(capturer.CaptureFrame());
 
   webrtc::VideoCodecVP9 vp9_settings;
   ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_FALSE(vp9_settings.denoisingOn)
-      << "VP9 denoising should be off by default.";
+  EXPECT_TRUE(vp9_settings.denoisingOn)
+      << "VP9 denoising should be on by default.";
 
   stream = SetDenoisingOption(last_ssrc_, &capturer, false);
 
   ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
   EXPECT_FALSE(vp9_settings.denoisingOn);
   // Frame dropping always on for real time video.
   EXPECT_TRUE(vp9_settings.frameDroppingOn);
 
   stream = SetDenoisingOption(last_ssrc_, &capturer, true);
 
@@ skipping 2368 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