Pass a real audio codec pair ID to decoders that we create

Bug: webrtc:8941
Change-Id: Ic2aed2ca759eb378164f3f65465e23fd7c13a9f8
Reviewed-on: https://webrtc-review.googlesource.com/63261
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Commit-Queue: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22538}
diff --git a/modules/audio_coding/neteq/neteq.cc b/modules/audio_coding/neteq/neteq.cc
index 8b74973..534c474 100644
--- a/modules/audio_coding/neteq/neteq.cc
+++ b/modules/audio_coding/neteq/neteq.cc
@@ -17,6 +17,13 @@
 
 namespace webrtc {
 
+NetEq::Config::Config() = default;
+NetEq::Config::Config(const Config&) = default;
+NetEq::Config::Config(Config&&) = default;
+NetEq::Config::~Config() = default;
+NetEq::Config& NetEq::Config::operator=(const Config&) = default;
+NetEq::Config& NetEq::Config::operator=(Config&&) = default;
+
 std::string NetEq::Config::ToString() const {
   std::stringstream ss;
   ss << "sample_rate_hz=" << sample_rate_hz