Use a common blank reference for wpt/css.

Change-Id: Iafcde04a7a212025204a64da2b089939b19d200e
Reviewed-on: https://chromium-review.googlesource.com/c/1282067
Commit-Queue: Morten Stenshorne <[email protected]>
Reviewed-by: Morten Stenshorne <[email protected]>
Cr-Commit-Position: refs/heads/master@{#599949}

Revert "[css-layout-api] Add LayoutEdges."

This reverts commit 980bc9b6532b0980721c123fa29fa561bc503f91.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 599680 as the
culprit for flakes in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/flake/flake-culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyQwsSDEZsYWtlQ3VscHJpdCIxY2hyb21pdW0vOTgwYmM5YjY1MzJiMDk4MDcyMWMxMjNmYTI5ZmE1NjFiYzUwM2Y5MQw

Sample Failed Build: https://ci.chromium.org/buildbot/chromium.mac/Mac10.10%20Tests/35414

Sample Failed Step: webkit_layout_tests on (none) GPU on Mac on Mac-10.10.5

Sample Flaky Test: external/wpt/css/css-layout-api/edges/scrollbar.https.html

Original change's description:
> [css-layout-api] Add LayoutEdges.
>
> This allows web developers to access pre-computed sizes for the border,
> scrollbar, and padding "edges".
>
> This adds two types of tests:
> 1) Uses the standard "green box" approach of testing the script values
>    match what is expected.
> 2) Positions four children at each corner (using edges) are positioned
>    the same as using an abs-pos technique.
>
> Bug: 726125
> Change-Id: I3b53be9b44989d919cb657d4eabc6d3a1a79181b
> Reviewed-on: https://chromium-review.googlesource.com/c/1252776
> Commit-Queue: Ian Kilpatrick <[email protected]>
> Reviewed-by: Aleks Totic <[email protected]>
> Reviewed-by: Morten Stenshorne <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#599680}

Change-Id: Ib4f9cb3e51daa57412d31cff71cbf0a3fe15cab9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 726125, 895731
Reviewed-on: https://chromium-review.googlesource.com/c/1282724
Cr-Commit-Position: refs/heads/master@{#599889}

Add web-platform-test for Signed Exchange

This patch adds only one basic test (sxg-location.tentative.html); more
tests will be converted from layout tests in following CLs.

For now, Signed Exchange and certificate are checked-in as static files,
assuming that UAs are configured to ignore signature expiration errors.

The test is marked as tentative as this is an experimental feature.

Bug: 895723
Change-Id: If762a0bf9c498ab3339b4aa09461d37d302e0210
Reviewed-on: https://chromium-review.googlesource.com/c/1282763
Reviewed-by: Kouhei Ueno <[email protected]>
Reviewed-by: Tsuyoshi Horo <[email protected]>
Reviewed-by: Kinuko Yasuda <[email protected]>
Reviewed-by: Kent Tamura <[email protected]>
Commit-Queue: Kunihiko Sakamoto <[email protected]>
Cr-Commit-Position: refs/heads/master@{#599910}

Merge pull request web-platform-tests#13511 from servo-wpt-sync/servo…

…_export_21933

Thread the status through navigation redirects

Fixed the inserAdjacentHTML tests (web-platform-tests#13525)

Firefox merges the text nodes when afterbegin / beforeend is used; this doesn't seem to be specced, and the domparsing tests don't capture that behavior, so removed this Chrome behavior assertions.

Fix broken web platform test that was trying to connect on a non-exis…

…tent port.

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1494151
gecko-commit: 4f99223da02146842694203124351f21b96dec5a
gecko-integration-branch: mozilla-inbound
gecko-reviewers: jgraham

Use tbpl formatter for logging stability checks. (web-platform-tests#…

…13520)

Before we were using the default formatter, which was a problem after changing to
the low-output GroupingFormatter since we were seeing no output and causing CI to believe
the job had stopped.

XHR: test unusual header name syntax

For httpwg/http-core#30.

Add URL parsing test for "ssh://example.com/foo/bar.git" (web-platfor…

…m-tests#13516)

Exercised in url-constructor.html and url/url-origin.html.

Points of disagreement:
 * `protocol` should be "ssh:" because it is simply the concatenation of
   scheme and ":": https://url.spec.whatwg.org/#dom-url-protocol. Set to
   "ssh" here: https://url.spec.whatwg.org/#scheme-state
 * `origin` should be "null" because the URL will be get an opaque
   origin in https://url.spec.whatwg.org/#concept-url-origin.
 * `host`, `hostname` and `pathname` require stepping through the parser
   to see why the result is what it is:
   https://url.spec.whatwg.org/#host-state
   https://url.spec.whatwg.org/#path-state

Based on https://felixfbecker.github.io/whatwg-url-custom-host-repro/
for webcompat/web-bugs#19792.

Fix processing of double Content-DPR values and add Content-DPR WPT t…

…ests

When processing multiple Content-DPR headers, the current logic parses
all of them as a single float, and understandably, fails in that task.
That means that if a server is adding multiple headers (due to
configuration error), none of them will be effective, contrary to the RFC.

This PR fixes that, copies over relevant tests from internal layout tests
to WPT, and adds a test for that issue specifically.

BUG=895245

Change-Id: I72b570ad4b1e4db9a2bb03be9d8fb1e3799b902b
Reviewed-on: https://chromium-review.googlesource.com/c/1280266
Reviewed-by: Tarun Bansal <[email protected]>
Commit-Queue: Yoav Weiss <[email protected]>
Cr-Commit-Position: refs/heads/master@{#599678}