Integration with moto secure keybox storage and add obfuscation of security-related symbols (3513413, 4083757). Also 3481645 - log spam and 3302187 - error handling

Change-Id: Ic11ed7ad57717e88b6f0f2991d8bbb9e1251d546

proprietary/wvm/include/WVMMediaSource.h

@@ -45,6 +45,8 @@ public:
 
     virtual status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL);
 
+    static int sLastError;
+
 protected:
     virtual ~WVMMediaSource();
 
@@ -57,6 +59,7 @@ private:
     sp<MetaData> mTrackMetaData;
 
     bool mStarted;
+    bool mLogOnce;
 
     MediaBufferGroup *mGroup;