GitLab

The |is_composited| was added to ScrollNodes in
https://crrev.com/6ce0a16d1e0 as a way to tell which ScrollNodes are
able to scroll directly on the compositor by changing the transform
tree. When the scroll unification flag is turned on, scroll nodes
without this bit set avoid mutating the transform tree and instead
rely on a commit from the main thread for a scroll to be realized.

PropertyTreeBuilder creates property trees for the UI compositor and
some tests based on the layer tree. The CL above did not update this
method of tree generation to set this bit. Since the nodes are built
from layers, all nodes should be considered composited in this case.

This change fixes tests when the scroll unification flag is turned on.

Bug: 1086625
Change-Id: I3a3552a5c17f1f69e038657c1f267b2a61f7a070
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2222892
Commit-Queue: David Bokan <bokan@chromium.org>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774277}