Chrome 69 introduced a new design. You may be able to revert to the old design using a flag in chrome://flags. Open Chrome, type chrome://flags into the address bar and tap/click Enter or Go. Find the flag named "UI Layout for the browser's top chrome" (or go to this URL inside Chrome: chrome://flags/#top-chrome-md) and change the value to Hybrid. If Hybrid doesn't work, you can experiment with the other values, too. Don't forget to restart Chrome after changing the value.