To install Chrome Dev Editor, you would probably need a developer channel of Google Chrome. Go to chrome://extensions, drag and drop the CRX file there. You will be asked to install the packaged app.
On the first run, the app could hang at a splash screen for a while:
In the main window, you can click the wrench icon to check the settings:
You can create your new project, deploy it or clone the Git repository using the hamburger icon:
You can run the HTML file using the context menu or the play icon:
Chrome Dev Editor provides code autocompletion and highlighting:
It even provides an integrated web server and supports Web Starter Kit out of the box:
Download Chrome Dev Editor packaged app (CRX)
Disclaimer: This is an unofficial developer pre-release. I am not affiliated with Google.