Package android.os

Removed Classes
CombinedVibrationEffect  
CombinedVibrationEffect.
SyncedCombination 		 
 

Added Classes
CombinedVibration  
CombinedVibration.ParallelCombination  
PerformanceHintManager  
PerformanceHintManager.
Session 		 
 

Changed Classes
Build  
VibrationEffect.Composition  
Vibrator  
VibratorManager