RFR: 8318113: CSS.BackgroundImage doesn't implement equals

[Alexey Ivanov]

On Fri, 10 Nov 2023 13:50:27 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> CSSBackgroundImage.equals() is implemented

[My recent comment](https://github.com/openjdk/jdk/pull/16613#discussion_r1392808012) removed my approval.

It's *approved* after the following is addressed:

> Please add 8318113 to the @bug tag in the test.

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Marked as reviewed by aivanov (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/16613#pullrequestreview-1732939378