Add QP for libvpx VP8 decoder.

webrtc/modules/video_coding/codecs/vp8/simulcast_unittest.h

 /*
  *  Copyright (c) 2014 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 130 matching lines @@
     decoded_frames_++;
     return 0;
   }
   int32_t Decoded(VideoFrame& decoded_image, int64_t decode_time_ms) override {
     RTC_NOTREACHED();
     return -1;
   }
   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_; }
 
  private:
   int decoded_frames_;
 };
 
 class TestVp8Simulcast : public ::testing::Test {
  public:
   TestVp8Simulcast(VP8Encoder* encoder, VP8Decoder* decoder)
@@ skipping 728 matching lines @@
   VideoCodec settings_;
   rtc::scoped_refptr<I420Buffer> input_buffer_;
   std::unique_ptr<VideoFrame> input_frame_;
   std::unique_ptr<SimulcastRateAllocator> rate_allocator_;
 };
 
 }  // namespace testing
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_VP8_SIMULCAST_UNITTEST_H_