mediaplayer: use non-blocking mode for AudioSink::write().

This cherry picks https://googleplex-android-review.git.corp.google.com/#/c/643541/ to master.

Bug: 19448263
Change-Id: I43dea830212de79c2b080185b6c6b36078f517d2
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 0b18ae0..5e5d099 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -1672,13 +1672,13 @@
     }
 }
 
-ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
+ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking)
 {
     LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
 
     //ALOGV("write(%p, %u)", buffer, size);
     if (mTrack != 0) {
-        ssize_t ret = mTrack->write(buffer, size);
+        ssize_t ret = mTrack->write(buffer, size, blocking);
         if (ret >= 0) {
             mBytesWritten += ret;
         }