GitLab

Speculative fix PlatformAppBrowserTest.OpenLink by registering
TabAddedWaiter before launching the App.

Bug: 1164123, 1000234
Change-Id: Ie1a303974d50941ca4cdc8382837e0ca86dd914e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2642645
Auto-Submit: Jiewei Qian  <qjw@chromium.org>
Commit-Queue: Ben Wells <benwells@chromium.org>
Reviewed-by: Ben Wells <benwells@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845972}