Merge pull request #5395 from 21pages/fix

fix gzip threshold changed by mistake

flutter/lib/models/ab_model.dart

@@ -214,7 +214,7 @@ class AbModel {
       });
       http.Response resp;
       // support compression
-      if (licensedDevices > 0 && body.length > 102400) {
+      if (licensedDevices > 0 && body.length > 1024) {
         authHeaders['Content-Encoding'] = "gzip";
         resp = await http.post(Uri.parse(api),
             headers: authHeaders, body: GZipCodec().encode(utf8.encode(body)));