Fix for HLS live streaming

An uninitialized return code was causing intermittent
playback failure during Widevine HLS live playback.

This change supports vendors doing Widevine integration
on their devices from the ICS code base.  It has been
confirmed to resolve the HLS streaming issue by 3
vendors.

Change-Id: Ib5bd1aa92f577a0e759e11cb154359686943a903
related-to-bug: 6277231

proprietary/wvm/WVMExtractorImpl.cpp

@@ -442,6 +442,10 @@ int64_t WVMExtractorImpl::getCachedDurationUs(status_t *finalStatus) {
     } else if (status != WV_Status_OK) {
         *finalStatus = ERROR_IO;
     } else {
+        if (mIsLiveStream)
+            *finalStatus = ERROR_END_OF_STREAM;
+        else
+            *finalStatus = OK;
         durationUs = (uint64_t)(secondsBuffered * 1000000LL);
     }