mediaplayer: ensure secure decoders are instantiated before starting source

Bug: 19984798
Change-Id: Iff13cf03c4ce3141380f4d7ab4a2b1045c5ce747
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
index 5a8beb1..d9f14a2 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
@@ -55,6 +55,7 @@
         kWhatTimedTextData,
         kWhatQueueDecoderShutdown,
         kWhatDrmNoLicense,
+        kWhatInstantiateSecureDecoders,
     };
 
     // The provides message is used to notify the player about various
@@ -125,6 +126,7 @@
 
     void notifyFlagsChanged(uint32_t flags);
     void notifyVideoSizeChanged(const sp<AMessage> &format = NULL);
+    void notifyInstantiateSecureDecoders(const sp<AMessage> &reply);
     void notifyPrepared(status_t err = OK);
 
 private: