Import wpt@f8993b242928cab74d1cc2977f07e479664e0ef8

Using wpt-import in Chromium d3057725.
With Chromium commits locally applied on WPT:
c15c1083 "Add test that datachannels close when connection does."


Note to sheriffs: This CL imports external tests and adds
expectations for those tests; if this CL is large and causes
a few new failures, please fix the failures by adding new
lines to TestExpectations rather than reverting. See:
https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md

Directory owners for changes in this CL:
foolip@chromium.org, lpz@chromium.org, robertma@chromium.org:
  external/wpt/tools

NOAUTOREVERT=true
TBR=foolip

No-Export: true
Change-Id: I1aedf762eaf394445d049638f3652f3d3718e59c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1982398Reviewed-by: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#727530}

third_party/blink/web_tests/external/wpt/tools/wptrunner/wptrunner/browsers/firefox.py

@@ -168,17 +168,13 @@ def run_info_extras(**kwargs):
           "wasm": kwargs.get("wasm", True),
           "verify": kwargs["verify"],
           "headless": kwargs.get("headless", False) or "MOZ_HEADLESS" in os.environ,
+          "sw-e10s": True,
           "fission": get_bool_pref("fission.autostart")}
 
     # The value of `sw-e10s` defaults to whether the "parent_intercept"
     # implementation is enabled for the current build. This value, however,
     # can be overridden by explicitly setting the pref with the `--setpref` CLI
-    # flag, which is checked here. If not supplied, the default value of
-    # `sw-e10s` will be filled in in `RunInfo`'s constructor.
-    #
-    # We can't capture the default value right now because (currently), it
-    # defaults to the value of `nightly_build`, which isn't known until
-    # `RunInfo`'s constructor.
+    # flag, which is checked here.
     sw_e10s_override = get_bool_pref_if_exists("dom.serviceWorkers.parent_intercept")
     if sw_e10s_override is not None:
         rv["sw-e10s"] = sw_e10s_override

third_party/blink/web_tests/external/wpt/tools/wptrunner/wptrunner/wpttest.py

@@ -119,18 +119,6 @@ class RunInfo(dict):
         if extras is not None:
             self.update(extras)
 
-        # Until the test harness can understand default pref values,
-        # (https://bugzilla.mozilla.org/show_bug.cgi?id=1577912) this value
-        # should by synchronized with the default pref value indicated in
-        # StaticPrefList.yaml.
-        #
-        # Currently for automation, the pref (and `sw-e10s`) defaults to true in
-        # nightly builds and false otherwise but can be overridden with
-        # `--setpref`. If overridden, the value would be initialized in
-        # `run_info_extras` and be supplied in the `extras` parameter.
-        if "sw-e10s" not in self:
-            self["sw-e10s"] = self.get("nightly_build", False)
-
         self["headless"] = extras.get("headless", False)
         self["webrender"] = enable_webrender