GitLab

Previously empty viewport triggered DCHECK failure in user
environments.

Bug: 1155943, 1153428
Change-Id: I15f784a3196d412621a2ab7a4e9bf99f2efe133a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2576777
Auto-Submit: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: vmpstr <vmpstr@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: vmpstr <vmpstr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834244}