Revert of https://codereview.chromium.org/119573004/
Reason for revert: Breaks the build (PasswordAutofillAgentTest.SuggestionSelect still uses one of the deleted methods)

TBR=abarth@chromium.org,tkent@chromium.org,isherman@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=330077

Review URL: https://codereview.chromium.org/110753003

git-svn-id: svn://svn.chromium.org/blink/trunk@164350 bbb929c8-8fbe-4397-9dbb-9b2b20218538