/** Close this asset manager. */
 public void close() {
   synchronized (this) {
     // System.out.println("Release: num=" + mNumRefs
     //                   + ", released=" + mReleased);
     if (mOpen) {
       mOpen = false;
       decRefsLocked(this.hashCode());
     }
   }
 }
 /*package*/ final void releaseTheme(long theme) {
   synchronized (this) {
     deleteTheme(theme);
     decRefsLocked(theme);
   }
 }
 /*package*/ void xmlBlockGone(int id) {
   synchronized (this) {
     decRefsLocked(id);
   }
 }