[iOS] Handle IsTabOpenWithURL for iOS

This CL makes sure that iOS is correctly handling
AutocompleteProviderClientImpl::IsTabOpenWithURL for iOS, passing the
argument in the iOS AutocompleteSuggestion.

Bug: 893121
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: Ia40621abf9a524c8531be8a268b71036fd1af6b7
Reviewed-on: https://chromium-review.googlesource.com/c/1268239
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: Stepan Khapugin <stkhapugin@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598744}
4 files changed