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This has the changes needed to preserve focus.
This change adds both v2 and v3 tests to validate the patch.

Bug: 1020664
Change-Id: I7b4f62f14d6aa8a370b4ebb7c30494eacb48fd74
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1893547
Commit-Queue: Hector Carmona <hcarmona@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: Dan Beam <dbeam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715055}