document SMALL_CHUNKS

src/settings.js

@@ -246,6 +246,10 @@ var WARN_ON_UNDEFINED_SYMBOLS = 0; // If set to 1, we will warn on any undefined
                                    // the existing buildsystem), and (2) functions might be
                                    // implemented later on, say in --pre-js
 
+var SMALL_CHUNKS = 0; // Use small chunk size for binary synchronous XHR's in Web Workers.
+                      // Used for testing.
+                      // See test_chunked_synchronous_xhr in runner.py and library.js.
+
 // Compiler debugging options
 var DEBUG_TAGS_SHOWING = [];
   // Some useful items: