Merge "Parse fonts.xml when SystemFonts#getAvailableFonts is called"

    }

    private static @NonNull Set<Font> collectAllFonts() {

        Map<String, Typeface> map = Typeface.getSystemFontMap();

        HashSet<NativeFont.Font> seenFonts = new HashSet<>();

        HashSet<Font> result = new HashSet<>();

        for (Typeface typeface : map.values()) {

            List<NativeFont.Family> families = NativeFont.readTypeface(typeface);

            for (NativeFont.Family family : families) {

                for (NativeFont.Font font : family.getFonts()) {

                    if (seenFonts.contains(font)) {

                        continue;

                    }

                    seenFonts.add(font);

                    try {

                        result.add(new Font.Builder(font.getFile(), family.getLocale())

                                .setFontVariationSettings(font.getAxes())

                                .setTtcIndex(font.getIndex())

                                .setWeight(font.getStyle().getWeight())

                                .setSlant(font.getStyle().getSlant())

                                .build());

                    } catch (IOException e) {

                        Log.w(TAG, "Failed to load " + font.getFile(), e);

                    }

        final FontCustomizationParser.Result oemCustomization =

                readFontCustomization("/product/etc/fonts_customization.xml", "/product/fonts/");

        Map<String, FontFamily[]> map = new ArrayMap<>();

        buildSystemFallback("/system/etc/fonts.xml", "/system/fonts/", oemCustomization, map);

        Set<Font> res = new HashSet<>();

        for (FontFamily[] families : map.values()) {

            for (FontFamily family : families) {

                for (int i = 0; i < family.getSize(); ++i) {

                    res.add(family.getFont(i));

                }

            }

        }

        return result;

        return res;

    }

    private static @Nullable ByteBuffer mmap(@NonNull String fullPath) {