[testing] Re-enable disabled flaky UITests WebViewShouldNotMirrored & CookiesCorrectlyLoadWithMultipleWebViews

[rmarinho]

Description

UITests WebViewShouldNotMirrored and CookiesCorrectlyLoadWithMultipleWebViews have been disabled due to flaky failures in CI. This issue tracks investigation and steps to re-enable these tests after resolution.

Steps to Reproduce

1. Observe failures/flakiness in WebViewShouldNotMirrored and CookiesCorrectlyLoadWithMultipleWebViews tests on CI.
2. Tests have been disabled via NUnit Ignore attribute.
3. Track and re-enable after stability is confirmed.

Link to public reproduction project repository

#31763

Version with bug

Unknown/Other

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

No stable workaround. Tests disabled as a temporary measure.

Relevant log output