Auto merge of #20453 - talklittle:issue-19157, r=cbrewster

History: update document URL on pushState/replaceState

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Update Document URL when calling pushState and replaceState on History.

https://html.spec.whatwg.org/multipage/#dom-history-pushstate
Steps 6, 7, 10

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- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #19157 (github issue number if applicable).

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