Added LoadStarted event handler

[perlun]

Hi guys,

Just a (very) quick one, since we seem to need this at work. Doing some clever JS hacks that breaks if we do a document.location-based redirect, so that's why I'm experimenting in this direction - maybe injecting some JS early in the page load can work? You know the feeling. 😄

@amaitland or @jornh, I assume I have your blessing to merge this into the CefSharp1 branch? 😉 (We're still using CefSharp1, will hopefully upgrade later this year as it looks now.)

[amaitland]

I assume I have your blessing to merge this into the CefSharp1 branch? 😉 (We're still using CefSharp1, will hopefully upgrade later this year as it looks now.)

Merge away 👍 Were you planning on releasing a Nuget package?

[perlun]

Thanks! Yes, I will, 1.25.8 it is. Coming up in a minute or two.

Btw, thanks a lot for doing a great job w/ taking care of the project!

[perlun]

Also, if someone wants to forward-port this to CefSharp 39.x, feel free. If you don't, I will probably end up doing it once we do the move to CEF3-based CefSharp, whenever that happens. (haven't been "forced" to do it yet, since CefSharp1 works quite well, even though the Chromium version is getting rather antique of course...)

[amaitland]

Btw, thanks a lot for doing a great job w/ taking care of the project!

No problem 😄

Also, if someone wants to forward-port this to CefSharp 39.x, feel free

Names were changed to mirror the Cef naming, both start and end are implemented.
https://github.com/cefsharp/CefSharp/blob/master/CefSharp/IWebBrowser.cs#L29

[perlun]

Cool! 😄