Revert "[iOS] Remove some scene state window usage in Lens"

This reverts commit 749e9db92249c008db32d1d4f38b3df1c943a910.

Reason for revert: Breaking the gesture recognizer for panning

Original change's description:
> [iOS] Remove some scene state window usage in Lens
>
> Bug: 376667510
> Change-Id: Ibf0f589577720b39680f7dc2795145e3d6fec649
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6032618
> Auto-Submit: Aliona Dangla <alionadangla@chromium.org>
> Reviewed-by: Radu Nitescu <radunitescu@google.com>
> Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
> Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1388777}

Bug: 376667510
Change-Id: I24ec5f89be898714bd334c97c634c7bd2a8fbd64
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6054723
Reviewed-by: Aliona Dangla <alionadangla@chromium.org>
Auto-Submit: Radu Nitescu <radunitescu@google.com>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1388853}