[misc-uiautomation] Add 242 reference cases

Impacted tests: new 0, update 242, delete 0
Unit test platform: [Chromium]
Unit test result summary: pass 153, fail 89, block 0
To match the test file, you are intended to put a space after `<p>` and before `</p>` :)

We can improve the test case, however, to leverage this reference file, https://github.com/w3c/csswg-test/blob/master/css21/reference/ref-filled-green-100px-square.xht

Could you please improve the test case and submit a pull request to W3C w-p-t repo with the reference file? In that repo, you don't need a reference/ sub-directory; just -ref suffix or ref- prefix is enough.

Moreover, for your info, the reference file above has **11** copies in W3C csswg-test repo and is referenced by **204** test files.