RTC[In/Out]boundRTPStreamStats: qpSum,framesDecoded,framesEncoded added.

webrtc/api/stats/rtcstats_objects.h

Index: webrtc/api/stats/rtcstats_objects.h
diff --git a/webrtc/api/stats/rtcstats_objects.h b/webrtc/api/stats/rtcstats_objects.h
index d18b248ad7a835ef4362ac9b151e1e158fe3a261..6abb743a0e6efe34a21fe3647c3c8369f27575ef 100644
--- a/webrtc/api/stats/rtcstats_objects.h
+++ b/webrtc/api/stats/rtcstats_objects.h
@@ -309,6 +309,9 @@ class RTCRTPStreamStats : public RTCStats {
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657854
   // SLI count is only defined for |media_type == "video"|.
   RTCStatsMember<uint32_t> sli_count;
+  // TODO(hbos): Only collected for the outbound case, should also be collected
+  // for inbound case by |RTCStatsCollector|. crbug.com/657854, crbug.com/657855
+  RTCStatsMember<uint64_t> qp_sum;
 
  protected:
   RTCRTPStreamStats(const std::string& id, int64_t timestamp_us);
@@ -354,6 +357,7 @@ class RTCInboundRTPStreamStats final : public RTCRTPStreamStats {
   RTCStatsMember<double> gap_loss_rate;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657855
   RTCStatsMember<double> gap_discard_rate;
+  RTCStatsMember<uint32_t> frames_decoded;
 };
 
 // https://w3c.github.io/webrtc-stats/#outboundrtpstats-dict*
@@ -373,6 +377,7 @@ class RTCOutboundRTPStreamStats final : public RTCRTPStreamStats {
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/657856
   RTCStatsMember<double> target_bitrate;
   RTCStatsMember<double> round_trip_time;
+  RTCStatsMember<uint32_t> frames_encoded;
 };
 
 // https://w3c.github.io/webrtc-stats/#transportstats-dict*