Reland of Add QP sum stats for received streams.

webrtc/media/engine/videodecodersoftwarefallbackwrapper_unittest.cc

 /*
  *  Copyright (c) 2015 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 123 matching lines @@
 // the software decoder.
 TEST_F(VideoDecoderSoftwareFallbackWrapperTest,
        ForwardsRegisterDecodeCompleteCallback) {
   class FakeDecodedImageCallback : public DecodedImageCallback {
     int32_t Decoded(VideoFrame& decodedImage) override { return 0; }
     int32_t Decoded(
         webrtc::VideoFrame& decodedImage, int64_t decode_time_ms) override {
       RTC_NOTREACHED();
       return -1;
     }
+    void Decoded(webrtc::VideoFrame& decodedImage,
+                 rtc::Optional<int32_t> decode_time_ms,
+                 rtc::Optional<uint8_t> qp) override {
+      RTC_NOTREACHED();
+    }
   } callback, callback2;
 
   VideoCodec codec = {};
   fallback_wrapper_.InitDecode(&codec, 2);
   fallback_wrapper_.RegisterDecodeCompleteCallback(&callback);
   EXPECT_EQ(&callback, fake_decoder_.decode_complete_callback_);
 
   fake_decoder_.decode_return_code_ = WEBRTC_VIDEO_CODEC_FALLBACK_SOFTWARE;
   EncodedImage encoded_image;
   fallback_wrapper_.Decode(encoded_image, false, nullptr, nullptr, -1);
@@ skipping 10 matching lines @@
   EncodedImage encoded_image;
   fallback_wrapper_.Decode(encoded_image, false, nullptr, nullptr, -1);
   // Hard coded expected value since libvpx is the software implementation name
   // for VP8. Change accordingly if the underlying implementation does.
   EXPECT_STREQ("libvpx (fallback from: fake-decoder)",
                fallback_wrapper_.ImplementationName());
   fallback_wrapper_.Release();
 }
 
 }  // namespace webrtc