layout: Convert layout internal display to inline for replaced elements

[mrobinson]

Replaced elements should never be able to have a layout internal
display, according to the specification. This change makes it so that
the used value of replaced element's display is always inline, as the
specification says.

---

• ./mach build -d does not report any errors
• ./mach test-tidy does not report any errors
• There are tests for these changes

[github-actions]

🔨 Triggering try run (#7583744708) with platforms=linux and layout=2020

[github-actions]

Test results for linux-wpt-layout-2020 from try job (#7583744708):

Flaky unexpected result (18)

• FAIL [expected PASS] /_mozilla/css/iframe/hide_and_show.html (#15265)
• TIMEOUT [expected OK] /_webgl/conformance/glsl/misc/shader-with-non-reserved-words.html (#16216)
  • NOTRUN [expected PASS] subtest: Overall test
• TIMEOUT [expected OK] /_webgl/conformance/uniforms/out-of-bounds-uniform-array-access.html (#26225)
  • NOTRUN [expected PASS] subtest: Overall test
• TIMEOUT [expected FAIL] /css/css-animations/animation-delay-010.html (#26573)
• TIMEOUT [expected OK] /custom-elements/reactions/customized-builtins/HTMLMediaElement.html (#31014)
• TIMEOUT [expected OK] /fetch/api/redirect/redirect-keepalive.https.any.html
• OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-window-open.html (#28691)
  • PASS [expected FAIL] subtest: load event does not fire on window.open('about:blank')
• OK [expected TIMEOUT] /html/browsers/browsing-the-web/navigating-across-documents/javascript-url-no-beforeunload.window.html (#29055)
  • PASS [expected TIMEOUT] subtest: Navigating an opened window via location.href to a javascript: URL must not fire beforeunload: string completion
  • FAIL [expected NOTRUN] subtest: Navigating an opened window with an iframe via location.href to a javascript: URL must not fire beforeunload on the iframe: string completion promise_test: Unhandled rejection with value: object "TypeError: w.frames[0] is undefined"
• OK /html/browsers/history/the-history-interface/traverse_the_history_3.html (#21383)
  • PASS [expected FAIL] subtest: Multiple history traversals, last would be aborted
• TIMEOUT [expected OK] /html/interaction/focus/the-autofocus-attribute/supported-elements.html (#24145)
  • TIMEOUT [expected PASS] subtest: Non-HTMLElement should not support autofocus Test timed out
  • NOTRUN [expected FAIL] subtest: Host element with delegatesFocus should support autofocus
  • NOTRUN [expected FAIL] subtest: Host element with delegatesFocus including no focusable descendants should be skipped
  • NOTRUN [expected FAIL] subtest: Area element should support autofocus
• TIMEOUT [expected OK] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html (#22667)
  • TIMEOUT [expected FAIL] subtest: Check that popups from a sandboxed iframe escape the sandbox if
    allow-popups-to-escape-sandbox is used Test timed out
• TIMEOUT [expected OK] /html/semantics/forms/form-submission-0/reparent-form-during-planned-navigation-task.html (#29724)
  • TIMEOUT [expected PASS] subtest: reparent-form-during-planned-navigation-task Test timed out
• OK /html/semantics/forms/form-submission-0/text-plain.window.html (#28687)
  • PASS [expected FAIL] subtest: text/plain: Basic File test (formdata event)
• OK /html/semantics/forms/historical.html (#28568)
  • PASS [expected FAIL] subtest: <input name=isindex> should not be supported
• TIMEOUT [expected OK] /html/webappapis/scripting/processing-model-2/integration-with-the-javascript-job-queue/promise-job-entry-different-function-realm.html (#25805)
  • TIMEOUT [expected FAIL] subtest: Fulfillment handler on pending-then-fulfilled promise Test timed out
  • TIMEOUT [expected FAIL] subtest: Rejection handler on pending-then-rejected promise Test timed out
• TIMEOUT /resource-timing/test_resource_timing.html (#25720)
  • FAIL [expected PASS] subtest: PerformanceEntry has correct name, initiatorType, startTime, and duration (img) assert_equals: expected 7169280 but got 7169536
• TIMEOUT [expected OK] /webmessaging/without-ports/017.html (#24486)
  • TIMEOUT [expected PASS] subtest: origin of the script that invoked the method, about:blank Test timed out
• OK [expected ERROR] /workers/constructors/Worker/Worker-constructor.html (#22991)

Stable unexpected results that are known to be intermittent (16)

• TIMEOUT [expected OK] /_webgl/conformance/glsl/misc/shader-uniform-packing-restrictions.html (#28103)
  • NOTRUN [expected PASS] subtest: Overall test
• PASS [expected FAIL] /css/css-flexbox/dynamic-baseline-change.html (#29234)
• OK /css/css-fonts/variations/at-font-face-font-matching.html (#20684)
  • FAIL [expected PASS] subtest: Matching font-weight: '400' should prefer '351 398' over '501 550' assert_equals: Unexpected font on test element expected 487 but got 532
  • PASS [expected FAIL] subtest: Matching font-weight: '430' should prefer '420 440' over '450 460'
  • PASS [expected FAIL] subtest: Matching font-weight: '430' should prefer '500' over '400 425'
  • PASS [expected FAIL] subtest: Matching font-weight: '430' should prefer '501 550' over '502 560'
  • FAIL [expected PASS] subtest: Matching font-weight: '500' should prefer '500' over '450 460' assert_equals: Unexpected font on test element expected 487 but got 532
  • FAIL [expected PASS] subtest: Matching font-weight: '500' should prefer '400' over '350 399' assert_equals: Unexpected font on test element expected 487 but got 532
  • PASS [expected FAIL] subtest: Matching font-stretch: '110%' should prefer '110% 120%' over '115% 116%'
  • FAIL [expected PASS] subtest: Matching font-stretch: '110%' should prefer '105%' over '100%' assert_equals: Unexpected font on test element expected 487 but got 532
  • PASS [expected FAIL] subtest: Matching font-style: 'normal' should prefer 'normal' over 'oblique 0deg'
  • FAIL [expected PASS] subtest: Matching font-style: 'normal' should prefer 'oblique 20deg 30deg' over 'oblique -50deg -20deg' assert_equals: Unexpected font on test element expected 487 but got 532
  • And 6 more unexpected results...
• OK /css/cssom-view/MediaQueryList-addListener-removeListener.html (#24569)
  • FAIL [expected PASS] subtest: listeners are called correct number of times assert_equals: expected 8 but got 7
• OK [expected TIMEOUT] /html/browsers/browsing-the-web/navigating-across-documents/about-srcdoc-navigation-blocked.window.html (#31025)
• OK /html/browsers/browsing-the-web/navigating-across-documents/initial-empty-document/load-pageshow-events-iframe-contentWindow.html (#28681)
  • PASS [expected FAIL] subtest: load & pageshow events do not fire on contentWindow of <iframe> element created with src='about:blank'
• OK /html/browsers/browsing-the-web/navigating-across-documents/navigate-to-unparseable-url.html (#29050)
  • FAIL [expected PASS] subtest: <a> tag navigate fails for unparseable URLs promise_test: Unhandled rejection with value: object "Error: Navigation was attempted to unparseable URL"
• OK /html/browsers/browsing-the-web/navigating-across-documents/navigation-unload-cross-origin.sub.window.html (#29056)
  • FAIL [expected PASS] subtest: Cross-origin navigation started from unload handler must be ignored promise_test: Unhandled rejection with value: object "SecurityError: The operation is insecure."
• TIMEOUT [expected OK] /html/browsers/browsing-the-web/read-media/pageload-image-in-popup.html (#23849)
  • NOTRUN [expected FAIL] subtest: The document for a standalone media file should have one child in the body.
• OK /html/browsers/history/the-history-interface/traverse_the_history_5.html (#21383)
  • FAIL [expected PASS] subtest: Multiple history traversals, last would be aborted assert_array_equals: Pages opened during history navigation expected property 1 to be 5 but got 3 (expected array [6, 5] got [6, 3])
• OK [expected TIMEOUT] /html/infrastructure/urls/base-url/document-base-url-window-initiator-is-not-opener.https.window.html (#30970)
• OK [expected TIMEOUT] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html (#22154)
  • FAIL [expected NOTRUN] subtest: Check that popups from a sandboxed iframe do not escape the sandbox assert_equals: It came from a sandboxed iframe expected "null" but got "http://web-platform.test:8000"
• OK [expected TIMEOUT] /html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html (#24066)
  • FAIL [expected NOTRUN] subtest: Check that popups from a sandboxed iframe do not escape the sandbox assert_equals: It came from a sandboxed iframe expected "null" but got "http://web-platform.test:8000"
• OK /html/semantics/forms/form-submission-0/urlencoded2.window.html (#28687)
  • FAIL [expected PASS] subtest: application/x-www-form-urlencoded: 0x00 in value (formdata event) assert_equals: expected "a=b%00c" but got ""
• OK [expected ERROR] /html/semantics/scripting-1/the-script-element/defer-script/async-script.html?reload (#29054)
• OK [expected ERROR] /workers/semantics/run-a-worker/003.html (#22765)

[github-actions]

✨ Try run (#7583744708) succeeded.