The ChromeUpdater that meet my needs

The ChromeUpdater is a great idea, but it downloads mini installer which does no good like installing the Chromium in C driver, putting trash in my registry, etc. 

Also the nightly builds of Chromium are not stable. The lack of update log means some time you will lose the last working build number since the CHECK&LATEST_CHANGE=the installed build and it will be overwritten if you run ChromeUpdater to see if the latest version fixes the problem you are facing.

Since there are several other problems exist, I just added a little code to make this tool works better.