GitLab

This change adds stack overflow protection for the recursive call
to build the bookmarks tree.  The depth of the tree is limited to
200 as we do for importing bookmarks.  Anything deeper than this
is silently ignored in the sync operation.

Bug: 1093190
Change-Id: Id0cab5097aadc9068a77578ec4c39de536d3818a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2246791
Commit-Queue: Chris Davis <chrdavis@microsoft.com>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#783054}