[TIMOB-25051] Android. persistentObjects leak

   // Keeps an object alive until dispose() is called.
   // This is currently used to keep "top level" objects
   // (ex: windows, tab groups) alive until their lifecycle ends.
   function PersistentHandle(object) {
   	this.cell = PersistentHandle.lastId++;
   	PersistentHandle.objects[this.cell] = object;
   }
   
   // Objects retained by persistent handles.
   // Each element in this array acts as a storage "cell"
   // keeping the object reachable and alive until it is removed.
   PersistentHandle.objects = {};
   
   PersistentHandle.lastId = 0;
   
   PersistentHandle.prototype.dispose = function() {
   	if (this.cell == -1) {
   		// This handle has already been disposed.
   		return;
   	}
   
   	delete PersistentHandle.objects[this.cell];
   	this.cell = -1;
   }