NuPlayer: play out pending frames on discontinuity

bug: 19567254

Change-Id: Iff689e1eea54283095068d68bcdff4c2674af554
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
index 72e7b0d..0554af9 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
@@ -157,7 +157,7 @@
 
         case kWhatFlush:
         {
-            onFlush(true);
+            onFlush();
             break;
         }