GitLab

The latter is going away. Long live Implside painting. This
fixes cc/trees/layer_tree_host_unittest_animation.cc,
cc/trees/layer_tree_host_unittest_copyrequest.cc and
cc/trees/layer_tree_host_common_unittest.cc.

R=enne, vmpstr
BUG=413479
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1169643002

Cr-Commit-Position: refs/heads/master@{#333111}