[Bug] RemoteDriverProtocol does not set user agent correctly

[GerbenKD]

The RemoteDriverProtocol class scans for the $useragent String here (in RemoteDriverProtocol):

            Entry<String, Object> entry = iter.next();
            Object val = entry.getValue();
            // substitute variable $useragent for the real value
            if (val instanceof String
                    && "$useragent".equalsIgnoreCase(val.toString())) {
                val = userAgentString;
            }
            capabilities.setCapability(entry.getKey(), entry.getValue());

However, the changed value is never actually used, instead the orginal value in the entry is used.
Related, I'm not sure this is the right way to set the user-agent for Chrome.

cheers and thanks,

Gerben

[jnioche]

thanks @GerbenKD, should now be fixed

feel free to open a PR if you find that Chrome requires a different mechanism