GitLab

Previously code was sending CopyOutputRequest from ChildFrame only if
the root renderer submitted frame, which is incorrect. This CL
addresses the issue.

Bug: 805739
Change-Id: Ic1f1243fe0d9b660773a9dbd753a09218880f72b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2037638Reviewed-by: Bo <boliu@chromium.org>
Commit-Queue: Vasiliy Telezhnikov <vasilyt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738354}