src: Fix regression in issue6229-webview-executeScript
src: Fix regression in issue6229-webview-executeScript

https://github.com/nwjs/chromium.src/commit/e2b051480127ec01a7eb9effa8535ce262d3be90

nwjs/nw.js,nwjs/nw.js,nwjs/nw.js,nwjs/nw.js,nwjs/nw.js,nwjs/nw.js