Add QP for libvpx VP8 decoder.

BUG=webrtc:6541, webrtc:7065
TBR=hta@webrtc.org

Review-Url: https://codereview.webrtc.org/2656603002
Cr-Original-Commit-Position: refs/heads/master@{#16722}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 5fec128de94c0b2d0090de8eac692dce9aa23a80
diff --git a/modules/video_coding/codecs/vp8/simulcast_unittest.h b/modules/video_coding/codecs/vp8/simulcast_unittest.h
index b7e3e7d..fb59646 100644
--- a/modules/video_coding/codecs/vp8/simulcast_unittest.h
+++ b/modules/video_coding/codecs/vp8/simulcast_unittest.h
@@ -148,7 +148,7 @@
   void Decoded(VideoFrame& decoded_image,
                rtc::Optional<int32_t> decode_time_ms,
                rtc::Optional<uint8_t> qp) override {
-    RTC_NOTREACHED();
+    Decoded(decoded_image);
   }
   int DecodedFrames() { return decoded_frames_; }