Bug 1856722 [wpt PR 42227] - gamepad: Check that the DocumentLoader i…

…s not null, a=testonly

Automatic update from web-platform-tests
gamepad: Check that the DocumentLoader is not null

Gamepad timestamps are reported relative to the navigationStart
timestamp, accessed from the DocumentLoader's DocumentLoadTiming.
In some scenarios the document may have been detached before the
NavigatorGamepad is initialized, causing the DocumentLoader to be
nullptr.

This CL checks that the DocumentLoader is non-null, and uses the
current time in place of navigationStart if it is null.

Bug: 1483777
Change-Id: Ib3efcf3a612cd4c1c543218fa5fb8568c7129dcf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4899018
Reviewed-by: Alvin Ji <alvinjichromium.org>
Commit-Queue: Matt Reynolds <mattreynoldschromium.org>
Cr-Commit-Position: refs/heads/main{#1204813}

--

wpt-commits: 3ae2cb8c5b5ba61809da15318821a6c1fe54829f
wpt-pr: 42227

UltraBlame original commit: bd7b3f9a73985da44f9bc6702a32ec864a47b024

testing/web-platform/tests/editing/crashtests/insertAdjacentElement-with-DOMSubtreeModified.html

@@ -0,0 +1,215 @@
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