function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {
		        try {
		            return controller._strategySizeAlgorithm(chunk);
		        }
		        catch (chunkSizeE) {
		            WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
		            return 1;
		        }
		    }
Convert a Request to Node.js http request options.

@param {Request} request - A Request instance
@return The options object to be passed to http.request