GitLab

This allows rounded corners to be forced off
when there is a sibling to a webview container window.

Bug: b/155436903
Test: Locally on device
Change-Id: Ida192575a1584192a248ceb1e98b1b54e467e857
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2245187
Commit-Queue: Shawn Gallea <sagallea@google.com>
Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Cr-Commit-Position: refs/heads/master@{#786603}