[Uno-D] Dont show Chrome Signin bubble if sign-in disallowed by pattern

This change adds a check within `MaybeShouldShowChromeSigninBubble` to
see if sign-in is allowed for the intercepted account. If the
`kReplaceSyncPromosWithSignInPromos` feature is enabled and
`CanOfferSignin` returns an error, the bubble will not be shown, and a
new reason `kShouldNotShowSigninDisallowed` is recorded. This requires
passing the `Profile` and the account's email to the check function.

Bug: 40070562
Change-Id: I2c464ad19097522e0e4f2aeaa7115dbf5e76a41b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6949165
Commit-Queue: David Roger <droger@chromium.org>
Reviewed-by: Yann Dago <ydago@chromium.org>
Reviewed-by: Menghan Yang <myuu@google.com>
Cr-Commit-Position: refs/heads/main@{#1516514}