Fix a bug on sending a message to retry in TimedText.

related-to-bug: 6480861

Change-Id: I86f24f1304dea42a7501c578cff0c590b048ccc2
diff --git a/media/libstagefright/timedtext/TimedTextPlayer.cpp b/media/libstagefright/timedtext/TimedTextPlayer.cpp
index f855d90..9b001cc 100644
--- a/media/libstagefright/timedtext/TimedTextPlayer.cpp
+++ b/media/libstagefright/timedtext/TimedTextPlayer.cpp
@@ -160,7 +160,7 @@
     status_t err = mSource->read(&startTimeUs, &endTimeUs,
                                  &(parcelEvent->parcel), options);
     if (err == WOULD_BLOCK) {
-        sp<AMessage> msg = new AMessage(kWhatRetryRead);
+        sp<AMessage> msg = new AMessage(kWhatRetryRead, id());
         if (options != NULL) {
             int64_t seekTimeUs;
             MediaSource::ReadOptions::SeekMode seekMode;