Vp9: Enable denoiser by default.

webrtc/media/engine/webrtcvideoengine2_unittest.cc

Index: webrtc/media/engine/webrtcvideoengine2_unittest.cc
diff --git a/webrtc/media/engine/webrtcvideoengine2_unittest.cc b/webrtc/media/engine/webrtcvideoengine2_unittest.cc
index 47f912b196e271c1c5656a23f8964799c0345e5b..395d6ed291ef71da1025d8fb1ebb58d92bb9b565 100644
--- a/webrtc/media/engine/webrtcvideoengine2_unittest.cc
+++ b/webrtc/media/engine/webrtcvideoengine2_unittest.cc
@@ -1971,8 +1971,8 @@ TEST_F(Vp9SettingsTest, VerifyVp9SpecificSettings) {
 
   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);