Give autofill's LegacyStrikeDatabas constants legacy names

In some (non default) jumbo configurations, strike.cc and
legacy_strike_database.cc compile in the same translation
unit and then some constants clash. Assuming
LegacyStrikeDatabase will soon go away, just give its
constants a bit longer names.

Bug: 884817
Change-Id: I1dc6d8b6499d3c6195a56423236198a02c32f3f0
Reviewed-on: https://chromium-review.googlesource.com/c/1348471
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610594}
1 file changed