/**
  * Re-enables selection modification handling and invokes
  * ContextualSearchSelectionHandler.handleSelection().
  *
  * @param selection The text that was selected.
  * @param type The type of selection made by the user.
  */
 private void handleSelection(String selection, SelectionType type) {
   mShouldHandleSelectionModification = true;
   mHandler.handleSelection(selection, isValidSelection(selection), type, mX, mY);
 }