MediaClock: add timer

Test: compiles
Bug: 65204641
Change-Id: Id80a41481255a8f8a9adce40cf10f629f996c6aa
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 19281cd..209caeb 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -78,6 +78,8 @@
     ALOGD("NuPlayerDriver(%p) created, clientPid(%d)", this, pid);
     mLooper->setName("NuPlayerDriver Looper");
 
+    mMediaClock->init();
+
     // set up an analytics record
     mAnalyticsItem = new MediaAnalyticsItem(kKeyPlayer);
     mAnalyticsItem->generateSessionID();