Change profile command line logic

If the user specified a profile email and there is a profile with the email address then the profile should be opened normally, rather than creating a new profile.

This fixes the issue that for the profile that already exists, a new profile is created instead of an existing profile open in the windows environment.

Bug: 395127068
Change-Id: I78b4abee41fd3fa20ae36ba947d31395ff0ada89
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6722918
Reviewed-by: Ryan Sultanem <rsult@google.com>
Reviewed-by: Yann Dago <ydago@chromium.org>
Commit-Queue: Kaleigh Rosenblat <kaleigh@google.com>
Cr-Commit-Position: refs/heads/main@{#1488823}