Bug 1190676 - Part 11 - Fix consumers: Web Speech. r=anatal,eitan

--HG--
extra : rebase_source : 1f5589c488beb6cadefbe0b3030590e33fcd292b

dom/media/webspeech/synth/nsSpeechTask.cpp

@@ -143,7 +143,7 @@ void
 nsSpeechTask::Init(ProcessedMediaStream* aStream)
 {
   if (aStream) {
-    mStream = MediaStreamGraph::GetInstance()->CreateSourceStream(nullptr);
+    mStream = aStream->Graph()->CreateSourceStream(nullptr);
     mPort = aStream->AllocateInputPort(mStream, 0);
     mIndirectAudio = false;
   } else {

dom/media/webspeech/synth/nsSynthVoiceRegistry.cpp

@@ -778,7 +778,9 @@ nsSynthVoiceRegistry::SpeakImpl(VoiceData* aVoice,
     aTask->Init(nullptr);
   } else {
     if (!mStream) {
-      mStream = MediaStreamGraph::GetInstance()->CreateTrackUnionStream(nullptr);
+      mStream =
+        MediaStreamGraph::GetInstance(MediaStreamGraph::AUDIO_THREAD_DRIVER,
+                                      AudioChannel::Normal)->CreateTrackUnionStream(nullptr);
     }
     aTask->Init(mStream);
   }