import changes from tenfourfox:

- #622: update brotli to 1.0.9, woff2 to tip (7c24b77e7)
- #622: actually add new brotli files (fc50954e6)

modules/brotli/enc/entropy_encode.c

@@ -18,6 +18,8 @@
 extern "C" {
 #endif
 
+const size_t kBrotliShellGaps[] = {132, 57, 23, 10, 4, 1};
+
 BROTLI_BOOL BrotliSetDepth(
     int p0, HuffmanTree* pool, uint8_t* depth, int max_depth) {
   int stack[16];