Backed out changeset 65ec189c410c (bug 1611938) for causing Android crashes CLOSED TREE

media/webrtc/signaling/src/media-conduit/WebrtcMediaDataEncoderCodec.cpp

@@ -79,7 +79,6 @@ WebrtcMediaDataEncoder::WebrtcMediaDataEncoder()
     : mThreadPool(GetMediaThreadPool(MediaThreadType::PLATFORM_ENCODER)),
       mTaskQueue(new TaskQueue(do_AddRef(mThreadPool),
                                "WebrtcMediaDataEncoder::mTaskQueue")),
-      mTaskQueueEventTarget(mTaskQueue->WrapAsEventTarget()),
       mFactory(new PEMFactory()),
       // Use the same lower and upper bound as h264_video_toolbox_encoder which
       // is an encoder from webrtc's upstream codebase.
@@ -158,28 +157,24 @@ bool WebrtcMediaDataEncoder::InitEncoder() {
 
 int32_t WebrtcMediaDataEncoder::RegisterEncodeCompleteCallback(
     webrtc::EncodedImageCallback* aCallback) {
-  mTaskQueueEventTarget->Dispatch(
-      NS_NewRunnableFunction(
+  OwnerThread()->Dispatch(NS_NewRunnableFunction(
       "WebrtcMediaDataEncoder::RegisterEncodeCompleteCallback",
       [self = RefPtr<WebrtcMediaDataEncoder>(this), aCallback]() {
         self->mCallback = aCallback;
-          }),
-      nsISerialEventTarget::DISPATCH_SYNC);
+      }));
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int32_t WebrtcMediaDataEncoder::Shutdown() {
   LOG("Release encoder");
-  mTaskQueueEventTarget->Dispatch(
-      NS_NewRunnableFunction(
+  OwnerThread()->Dispatch(NS_NewRunnableFunction(
       "WebrtcMediaDataEncoder::Shutdown",
       [self = RefPtr<WebrtcMediaDataEncoder>(this),
        encoder = RefPtr<MediaDataEncoder>(std::move(mEncoder))]() {
         self->mCallback = nullptr;
         self->mError = NS_OK;
         encoder->Shutdown();
-          }),
-      nsISerialEventTarget::DISPATCH_SYNC);
+      }));
   return WEBRTC_VIDEO_CODEC_OK;
 }
 

media/webrtc/signaling/src/media-conduit/WebrtcMediaDataEncoderCodec.h

@@ -57,7 +57,6 @@ class WebrtcMediaDataEncoder : public RefCountedWebrtcVideoEncoder {
 
   const RefPtr<SharedThreadPool> mThreadPool;
   const RefPtr<TaskQueue> mTaskQueue;
-  const nsCOMPtr<nsIEventTarget> mTaskQueueEventTarget;
   const RefPtr<PEMFactory> mFactory;
   RefPtr<MediaDataEncoder> mEncoder;
   webrtc::EncodedImageCallback* mCallback = nullptr;