Bug 1365484 - Remove the call to AbstractThread::GetCurrent() in Benchmark.cpp. r=gerald

See bug 1365483 for the rationale.

MozReview-Commit-ID: ITKtWISQ3A3

--HG--
extra : rebase_source : 0bc0521ad8a00e643dcd762c495b6fb5f4ae3ecb

dom/media/Benchmark.cpp

@@ -90,7 +90,7 @@ VP9Benchmark::IsVP9DecodeFast()
 }
 
 Benchmark::Benchmark(MediaDataDemuxer* aDemuxer, const Parameters& aParameters)
-  : QueueObject(AbstractThread::GetCurrent())
+  : QueueObject(AbstractThread::MainThread())
   , mParameters(aParameters)
   , mKeepAliveUntilComplete(this)
   , mPlaybackState(this, aDemuxer)