Fix cc unit tests that depend on verify_property_trees=true

A number of cc unit tests have started checking property tree output,
primarily visible_rect_from_property_trees but also needs_rebuild on the
trees.

Because of this, these tests now depend on running the property tree
code, so setting verify_property_trees=false forces these tests to run
only CDP code which causes them to fail.

Therefore, convert these specific tests to use property tree updates
directly.  This also requires a PrecalculateMetaInformation function
for LayerImpl, as LayerTreeHostCommonTest.SkippingSubtreeImpl touched
LayerImpl properties that could only theoretically be changed from
the main thread.

In the future, I think all layer tree host common tests will need to go
down the property tree update path, but (in my opinion) it's not worth
doing that until we have property trees everywhere.  This patch is just
a step in that direction to unblock property trees for the compositor
thread first.

R=ajuma@chromium.org,vollick@chromium.org
BUG=481585

Review URL: https://codereview.chromium.org/1136643006

Cr-Commit-Position: refs/heads/master@{#330561}

1 files changed, 1 insertions, 0 deletions

diff --git a/cc/trees/layer_tree_host_common.h b/cc/trees/layer_tree_host_common.h
index 7d90445..e48741a 100644
--- a/cc/trees/layer_tree_host_common.h
+++ b/cc/trees/layer_tree_host_common.h
@@ -121,6 +121,7 @@ class CC_EXPORT LayerTreeHostCommon {
                                   bool* animation_preserves_axis_alignment);
   static void CalculateDrawProperties(CalcDrawPropsMainInputs* inputs);
   static void PreCalculateMetaInformation(Layer* root_layer);
+  static void PreCalculateMetaInformationForTesting(LayerImpl* root_layer);
 
   typedef CalcDrawPropsInputs<LayerImpl, LayerImplList> CalcDrawPropsImplInputs;
   typedef CalcDrawPropsInputsForTesting<LayerImpl, LayerImplList>