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When a profile is deleted, all browsing_data is removed and the folder
is marked for deletion on shutdown. Bookmarks are currently not deleted
until the folder is deleted. As bookmarks can contains sensitive data
they should also be removed immediately.
This also changes SigninManagerAndroidTest to use
ChromeBrowsingDataRemoverDelegate.

Bug: 803643, 748484
Change-Id: Icebfcec44d61d8b38939a8cee8dc4a92b6f9e258
Reviewed-on: https://chromium-review.googlesource.com/957040
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543358}