[WPF] Fix FormsPanel MeasureOverride negative requested size

[tessarolli]

Description of Change

On WPF Platform, Element.Measure().Request(); sometimes return negative values (-1) on Width or Height. If that happened, instantiating a new Windows.Size with negative values would throw an exception that prevented software execution.
This fix is to prevent that from happening, as it checks and replaces -1 values with zero.

Issues Resolved

Fix Negative Width or Height on new Windows.Size();

API Changes

None

Platforms Affected

WPF

Behavioral/Visual Changes

None

Before/After Screenshots

Not applicable

PR Checklist

• Targets the correct branch

[VladislavAntonyuk]

Thank you for the PR. please make sure you didn't break fixes for:
#6436
#8039
#9029
#5682
#6842

[tessarolli]

Hi Vladislav,

I've update to check for all negative values.

Personally, I dont believe it will break any of those fixes you mentioned, because in case you do receive a negative request size, it would throw an exception trying to instantiate a new Size(), that would prevent software execution.

I did some testings on my end and all seems fine.