You did eventing right except for one step.
Making new account.
Quit Google Chrome completely.
Go to the Go menu > Go to Folder.
Enter the following directories in the text field, then press Go.
~/Library/Application Support/Google/Chrome/
Locate the folder called "Default" in the directory window that opens and rename it as "Backup default."
Try opening Google Chrome again. A new "Default" folder is automatically created as you start using the browser.
Alternatively you can "teach" your browser.
That is done by adding the :80 to the web address.
Example www.myseite.com:80
Also run the netstat -a -p tcp to see if https (443) are open)
Last not least, turn off the experimental "Built-in Asynchronous DNS" is Disabled in chrome://flags/
Best Answer
Try disabling all extensions, then quit and restart. If the problem does not occur, reenable extensions one at a time until you discover which one causes the issue. At that point you can report the report the issue to the developer of the extension.