Reland "[Data Sharing] Adding tests for create flow."

This is a reland of commit 11881c7fbc957d33112c55951faf410507dd08db

Reland Reason : Bot failure https://ci.chromium.org/ui/p/chrome/builders/ci/linux-lacros-chrome/3176/test-results?sortby=&groupby= is unrelated to the following changes.

Original change's description:
> [Data Sharing] Adding tests for create flow.
>
> Bug: b/358153912
> Change-Id: Ib9a7b30d6c767f3a8b0de01db43a2acbbb2e61f9
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5809570
> Reviewed-by: Siddhartha S <ssid@chromium.org>
> Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
> Commit-Queue: Ritika Gupta <ritikagup@google.com>
> Cr-Commit-Position: refs/heads/main@{#1348172}

Bug: b/358153912
Change-Id: Ibee96dcf81e42c947286113eca8eff67b24ff2ba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5826348
Reviewed-by: Siddhartha S <ssid@chromium.org>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Commit-Queue: Ritika Gupta <ritikagup@google.com>
Cr-Commit-Position: refs/heads/main@{#1349455}