Fixing names of password_manager kEnableHtmlBasedUsernameDetector feature.

Fixing  names of password_manager kEnableHtmlBasedUsernameDetector feature
as per the naming convention.

Bug: 785953
Change-Id: I8818a2e2335d9a651d02ab9925bd7e4987a661a3
Reviewed-on: https://chromium-review.googlesource.com/878101
Commit-Queue: NIKHIL SAHNI <[email protected]>
Reviewed-by: Vaclav Brozek <[email protected]>
Cr-Commit-Position: refs/heads/master@{#532343}
6 files changed