Bug 1201393. Remove usage of FLAG_BLOCK_INPUT from MediaRecorder. r=jwwang

FLAG_BLOCK_INPUT is not needed on mPipeStream because nothing should cause
mPipeStream to block.

--HG--
extra : commitid : 660ZZiOdNCM
extra : rebase_source : 065351c8f7233072afa623d4e8ec0fb1dc2ceb47

dom/media/MediaRecorder.cpp

@@ -792,7 +792,7 @@ MediaRecorder::MediaRecorder(AudioNode& aSrcAudioNode,
     AudioNodeStream* ns = aSrcAudioNode.GetStream();
     if (ns) {
       mInputPort = mPipeStream->AllocateInputPort(aSrcAudioNode.GetStream(),
-                                                  MediaInputPort::FLAG_BLOCK_INPUT,
+                                                  0,
                                                   0,
                                                   aSrcOutput);
     }