Blink side changes to removing WebFrame parameter from WebPermissionClient, since it's redundant now.

BUG=304341

Review URL: https://codereview.chromium.org/225303007

git-svn-id: svn://svn.chromium.org/blink/trunk@170983 bbb929c8-8fbe-4397-9dbb-9b2b20218538