surface

public class ActivityStack {  
  
    ......  
  
    final int startActivityUncheckedLocked(ActivityRecord r,  
           ActivityRecord sourceRecord, Uri[] grantedUriPermissions,  
           int grantedMode, boolean onlyIfNeeded, boolean doResume) {  
        final Intent intent = r.intent;  
        final int callingUid = r.launchedFromUid;  
  
        int launchFlags = intent.getFlags();