Move ios connectors utils

Move utils to connectors instead of reporting subfolder as we need them
for Url filtering as well.

Bug: None
Change-Id: I3f8381030a2f4631b438a39e858b51a4de86be94
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6409551
Auto-Submit: Ernesto Izquierdo Clua <eic@google.com>
Reviewed-by: Xu Li <mxlg@google.com>
Commit-Queue: Ernesto Izquierdo Clua <eic@google.com>
Cr-Commit-Position: refs/heads/main@{#1440389}