FastMixer use FastThread and FastMixerState use FastThreadState

Change-Id: I594c973e9f575113bdefee6f4cf8c29d8beac1f3
diff --git a/services/audioflinger/FastMixerState.cpp b/services/audioflinger/FastMixerState.cpp
index 43ff233..4631274 100644
--- a/services/audioflinger/FastMixerState.cpp
+++ b/services/audioflinger/FastMixerState.cpp
@@ -29,10 +29,10 @@
 {
 }
 
-FastMixerState::FastMixerState() :
+FastMixerState::FastMixerState() : FastThreadState(),
     mFastTracksGen(0), mTrackMask(0), mOutputSink(NULL), mOutputSinkGen(0),
-    mFrameCount(0), mCommand(INITIAL), mColdFutexAddr(NULL), mColdGen(0),
-    mDumpState(NULL), mTeeSink(NULL), mNBLogWriter(NULL)
+    mFrameCount(0),
+    mDumpState(NULL), mTeeSink(NULL)
 {
 }