RFR: 8296590: StraightLineTest fails always on Linux and sometimes on other platforms

[Jay Bhaskar]

On Tue, 25 Apr 2023 11:42:28 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

> Issue: The test fails, in case snapshot is taken before web view finish web content load
> Solution: Introduce a sleep , before taking snapshot of web view , to test straight line

Tested on Linux, There was an issue with the HTML source, the div text was wrapping, due to which the underline property becomes wrapped. Like 
<div>
UNDERLINE TEST
_______________
</div>

becomes 
<div>
UNDERLINE 
__________
TEST
_____
</div>

So , it needs to be nowarp.

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PR Comment: https://git.openjdk.org/jfx/pull/1115#issuecomment-1524488692