In http://crrev.com/382029, IDN display policy was revised to be
independent of Accept-Languages (A-L).  Therefore, IDNToUnicode(), FormatUrl*()
and ElideUrl() do not need |languages| argument any more.
( ElideUrl() can pass A-L down to gfx string drawing/measuring API help
their font selection, but there's no gfx string drawing/measuring API taking
into account A-L values in the font selection atm.)

Drop it in the API and fix all the call sites. There is a huge ripple effect
and a lot of files have to be fixed up.

BUG=336973
TEST=Builds on all platforms and pass all the tests pass
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_site_isolation
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel,mac_blink_rel,win_blink_rel

Review URL: https://codereview.chromium.org/1841653003

Cr-Commit-Position: refs/heads/master@{#385299}