> should Chrome confirm me before remove them all?
1. I am sitting at Chrome right now, Version 25.0.1364.152.
2. I choose "Settings".
3. I choose "History".
4. I choose "Clear all browsing data ...". See the ellipsis? That means it won't take any action until I allow it.
5. Next, I see a dialog that says:
Clear all Browsing data
Obliterate the following items from the past hour/day/week/month/etc.:
☑ Clear browsing history
☑ Clear download history
☑ Empty the cache
☑ Delete cookies and other site and plug-in data
☑ Clear saved passwords
☑ Clear saved Autofill form data
☑ Clear data from hosted apps
☑ Deauthorize content licenses
[Cancel] [Clear Browsing Data]