It seems that it is not possible, but if anyone as a hint on how to create a right-sided sidebar (like a iframe) in google chrome, any hint will help. Thanks.
If you mean something like that
This is from the google chrome experimental api:
Caution: Don't depend on these experimental APIs. They might disappear, and they will change. Also, the Chrome Developer Dashboard doesn't allow you to upload extensions that use experimental APIs.
Details: http://www.chromium.org/chromium-os/user-experience/panels
The experimental sidebar API has, as of this time, disappeared from the chrome documentation, since there is no longer a developer working on it.
Your best bet for something that you can achieve now is a DOM bar, as discussed in Creating a StumbleUpon-like toolbar for Chrome
来源：https://stackoverflow.com/questions/2923910/how-to-create-a-sidebarright-side-in-google-chrome