[webkit-changes] [WebKit/WebKit] df3d03: Fix flaky drag and drop test

[Per Arne Vollan]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: df3d039f2f080e67eb94d694889303a29113a176
      https://github.com/WebKit/WebKit/commit/df3d039f2f080e67eb94d694889303a29113a176
  Author: Per Arne Vollan <pvollan at apple.com>
  Date:   2023-10-18 (Wed, 18 Oct 2023)

  Changed paths:
    M LayoutTests/editing/pasteboard/datatransfer-types-dropping-text-file-promise.html
    M LayoutTests/platform/mac-wk1/TestExpectations

  Log Message:
  -----------
  Fix flaky drag and drop test
https://bugs.webkit.org/show_bug.cgi?id=263279
rdar://115155299

Reviewed by Brent Fulgham and Ryosuke Niwa.

Start the test in the body's onload handler when everything has been parsed, since 261705 at main
changed behavior in HTML parser yielding.

* LayoutTests/editing/pasteboard/datatransfer-types-dropping-text-file-promise.html:
* LayoutTests/platform/mac-wk1/TestExpectations:

Canonical link: https://commits.webkit.org/269475@main