Merge "Fix segmentation fault in aapt2"

    template <typename Predicate>

    void Filter(Predicate&& func) {

      children_.erase(std::remove_if(children_.begin(), children_.end(),

                                     [&](const auto& e) { return func(e.get()); }));

                                     [&](const auto& e) { return func(e.get()); }),

                      children_.end());

    }

    /** Retrieves the list of children of the element. */