Core - ResourceHandler free resources in Dispose instead of Cancel
Core - ResourceHandler free resources in Dispose instead of Cancel

There is no example of Cancel in the source code and the description in the doc doesn't
really provide a clear explanation of it's intended use case.

See code comment for further details

Livit/CefSharp,Livit/CefSharp,Livit/CefSharp,Livit/CefSharp