Bug 1522790 [wpt PR 45735] - [Gecko Bug 1522790] Use marionette new window command to open wptrunner windows, a=testonly

Automatic update from web-platform-tests
Use marionette new window command to open wptrunner windows

Differential Revision: https://phabricator.services.mozilla.com/D23972

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1522790
gecko-commit: ed9818780499bbba8c5b606bd2632985ee3e5991
gecko-reviewers: jgraham

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[wpt] Fix intermittent test failures for short timer.

Depends on D23972

Differential Revision: https://phabricator.services.mozilla.com/D204234

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1522790
gecko-commit: d099e86e9a3f35890fbec91fef48fc0115f03480
gecko-reviewers: whimboo

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[wptrunner] Fix MarionetteWindowProtocolPart.set_rect() for optional arguments.

Depends on D206622

Differential Revision: https://phabricator.services.mozilla.com/D206623

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1522790
gecko-commit: 91d70d27459b254b2b9d8cf4b610c09e593ef369
gecko-reviewers: jgraham

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Remove unused import of the time module
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wpt-commits: d2cb1d467d81a6b455cffd248a252f6c904cab9a, f161ff1fa3ea796afa645162190d1a7f0c9db997, 108fe0e2b7cf186958964dca3f8013d890dc2cda, 1700d345305753867cb41b57f273013e9f2311c4
wpt-pr: 45735

Author: jgraham

testing/web-platform/tests/tools/wptrunner/wptrunner/executors/executormarionette.py

@@ -3,7 +3,6 @@
 import json
 import os
 import threading
-import time
 import traceback
 import uuid