GitLab

BookmarkModel::RemoveNodeAndGetRemovedUrls() does not require AsMutable
as sunction itself suggest RemoveNode and get its url, and parent() can
return non const pointer. So AsMutable() is not required in this case.

BUG=481500

Review URL: https://codereview.chromium.org/1104093002

Cr-Commit-Position: refs/heads/master@{#327220}