Moved injection of AudioDecoderFactory into voe::Channel.

webrtc/modules/audio_coding/neteq/neteq_impl.cc

Index: webrtc/modules/audio_coding/neteq/neteq_impl.cc
diff --git a/webrtc/modules/audio_coding/neteq/neteq_impl.cc b/webrtc/modules/audio_coding/neteq/neteq_impl.cc
index 5e98b88ff46263997aa93271d7a2ba1fc42d4072..b332079f47f4af025b3c1627d9b030c92d7a87b6 100644
--- a/webrtc/modules/audio_coding/neteq/neteq_impl.cc
+++ b/webrtc/modules/audio_coding/neteq/neteq_impl.cc
@@ -55,10 +55,12 @@
 
 namespace webrtc {
 
-NetEqImpl::Dependencies::Dependencies(const NetEq::Config& config)
+NetEqImpl::Dependencies::Dependencies(
+    const NetEq::Config& config,
+    const rtc::scoped_refptr<AudioDecoderFactory>& decoder_factory)
     : tick_timer(new TickTimer),
       buffer_level_filter(new BufferLevelFilter),
-      decoder_database(new DecoderDatabase(CreateBuiltinAudioDecoderFactory())),
+      decoder_database(new DecoderDatabase(decoder_factory)),
       delay_peak_detector(new DelayPeakDetector(tick_timer.get())),
       delay_manager(new DelayManager(config.max_packets_in_buffer,
                                      delay_peak_detector.get(),