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Does the connection setup in a specific sequence that historically
triggered a deadlock (https://crbug.com/736725). The test simply
verifies this specific sequence completes without errors.

Verified it fails on the deadlock by running the test on the parent commit
(2485344d)of the original bug fix.

BUG=chromium:818584

Change-Id: I3245de0b8f824a83f26a310d8f12bba45aea0958
Reviewed-on: https://chromium-review.googlesource.com/1044196
Commit-Queue: Kristoffer Erlandsson <kerl@google.com>
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556359}