GitLab

Firefox has not stored search engine data in XML files in the past five
years (https://bugzilla.mozilla.org/show_bug.cgi?id=1203167). Something
about the search engines importer is causing crashes, but with no tests
and no good way to get an old-style profile to test with, fixing that
bug is difficult. Just remove the code instead, since it has bitrotted
and it's unlikely that anyone is importing a 3+ year-old Firefox profile
that has not been migrated to the new storage scheme.

Firefox now stores search engines in an LZ4-compressed JSON file called
search.json.mozlz4, which would be the thing to read if Chromium wanted
to re-add support for importing Firefox search engines.

Bug: 1073905
Change-Id: Ib1643d64407a550805105908df40075d85cfa118
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2163872Reviewed-by: Gabriel Charette <gab@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#763336}