Chrome soon will show a warning icon when you visit HTTP websites in the browser. Back in December last year, Chrome Security team has made a proposal that browsers “gradually change their UX to display non-secure origins as affirmatively non-secure. We intend to devise and begin deploying a transition plan for Chrome in 2015″.
Red Skull & Crossbones Icon shown by Google Chrome on https:// Pages [Reason and meaning]
As said they started to work on it and added a flag to Canary channel to mark HTTP Sites as non-secure, you need to visit chrome://flags/#mark-non-secure-as link in browser and need to select ‘Mark non-secure origins as non-secure’ and relaunch and visit any non-secure website like ours to see a warning icon (check the screenshot below) which conveys message to the users that HTTP provides no data security.
Read this page for more details about the proposal and check this bug.