How can I enable Chrome/Chromium Unity integration?

I installed Ubuntu yesterday on a new laptop. After downloading and installing Chrome, I realized that there is no experimental integration Gnome3/Unity flag in about:flags? I remember using the integration with Chrome on an older machine, is it by some mistake that I can't see it here or was it remove from the experimental features of Chrome?

I can still see double close/minimize/maximize buttons - one set from the window manager, the other from chrome.

You need to right click on the Chrome title bar and set "Use System Title Bar and Borders":

Google Chrome/Chromium Browser uses to manage appearance customization under Settings/Personal Stuff.

Write: chrome://settings/personal in order to enter this section and choose "Hide System Title Bar and use compact borders" as shown in this screenshot:

Good Luck!

Go to preferences and make sure you have Use System Title Bar and Borders checked:

Click the 'wrench' icon, and then select "Settings". From Settings select "Personal Stuff" and click the radio button next to "Hide system title bar and use compact borders"